Exhibit 24 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Lauren N. Patch and Barry S. Porter, and each of them, as his/her true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him/her and in his/her name, place and stead, in any and all capacities, to sign any and all future amendments to this Registration Statement and documents related thereto, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission and The Nasdaq Stock Market, granting unto each of said attorneys-in-fact and agents, and substitute or substitutes, full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as he/she might or could do in person, hereby ratifying and confirming all things that each of said attorneys-in-fact and agents, or his or their substitute or substitutes, may lawfully do or cause to be done by virtue hereof. IN WITNESS WHEREOF, the undersigned has hereunto set his hand as of the 20th day of September, 1999. By: /s/Lauren N. Patch ------------------------------ Lauren N. Patch President and CEO; Director POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Lauren N. Patch and Barry S. Porter, and each of them, as his/her true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him/her and in his/her name, place and stead, in any and all capacities, to sign any and all future amendments to this Registration Statement and documents related thereto, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission and The Nasdaq Stock Market, granting unto each of said attorneys-in-fact and agents, and substitute or substitutes, full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as he/she might or could do in person, hereby ratifying and confirming all things that each of said attorneys-in-fact and agents, or his or their substitute or substitutes, may lawfully do or cause to be done by virtue hereof. IN WITNESS WHEREOF, the undersigned has hereunto set his hand as of the 20th day of September, 1999. By: /s/Barry S. Porter --------------------------------- Barry S. Porter CFO and Treasurer POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Lauren N. Patch and Barry S. Porter, and each of them, as his/her true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him/her and in his/her name, place and stead, in any and all capacities, to sign any and all future amendments to this Registration Statement and documents related thereto, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission and The Nasdaq Stock Market, granting unto each of said attorneys-in-fact and agents, and substitute or substitutes, full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as he/she might or could do in person, hereby ratifying and confirming all things that each of said attorneys-in-fact and agents, or his or their substitute or substitutes, may lawfully do or cause to be done by virtue hereof. IN WITNESS WHEREOF, the undersigned has hereunto set his hand as of the 20th day of September, 1999. By: /s/William L. Woodall ------------------------------- William L. Woodall Vice Chairman of the Board POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Lauren N. Patch and Barry S. Porter, and each of them, as his/her true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him/her and in his/her name, place and stead, in any and all capacities, to sign any and all future amendments to this Registration Statement and documents related thereto, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission and The Nasdaq Stock Market, granting unto each of said attorneys-in-fact and agents, and substitute or substitutes, full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as he/she might or could do in person, hereby ratifying and confirming all things that each of said attorneys-in-fact and agents, or his or their substitute or substitutes, may lawfully do or cause to be done by virtue hereof. IN WITNESS WHEREOF, the undersigned has hereunto set his hand as of the 20th day of September, 1999. By: /s/Howard L. Sloneker III ---------------------------------- Howard L. Sloneker III Sr. Vice President and Secretary; Director POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Lauren N. Patch and Barry S. Porter, and each of them, as his/her true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him/her and in his/her name, place and stead, in any and all capacities, to sign any and all future amendments to this Registration Statement and documents related thereto, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission and The Nasdaq Stock Market, granting unto each of said attorneys-in-fact and agents, and substitute or substitutes, full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as he/she might or could do in person, hereby ratifying and confirming all things that each of said attorneys-in-fact and agents, or his or their substitute or substitutes, may lawfully do or cause to be done by virtue hereof. IN WITNESS WHEREOF, the undersigned has hereunto set his hand as of the 20th day of September, 1999. By: /s/Arthur J. Bennert ------------------------------- Arthur J. Bennert Director POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Lauren N. Patch and Barry S. Porter, and each of them, as his/her true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him/her and in his/her name, place and stead, in any and all capacities, to sign any and all future amendments to this Registration Statement and documents related thereto, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission and The Nasdaq Stock Market, granting unto each of said attorneys-in-fact and agents, and substitute or substitutes, full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as he/she might or could do in person, hereby ratifying and confirming all things that each of said attorneys-in-fact and agents, or his or their substitute or substitutes, may lawfully do or cause to be done by virtue hereof. IN WITNESS WHEREOF, the undersigned has hereunto set his hand as of the 20th day of September, 1999. By: /s/Terrence J. Baehr ------------------------------- Terrence J. Baehr Director POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Lauren N. Patch and Barry S. Porter, and each of them, as his/her true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him/her and in his/her name, place and stead, in any and all capacities, to sign any and all future amendments to this Registration Statement and documents related thereto, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission and The Nasdaq Stock Market, granting unto each of said attorneys-in-fact and agents, and substitute or substitutes, full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as he/she might or could do in person, hereby ratifying and confirming all things that each of said attorneys-in-fact and agents, or his or their substitute or substitutes, may lawfully do or cause to be done by virtue hereof. IN WITNESS WHEREOF, the undersigned has hereunto set his hand as of the 20th day of September, 1999. By: /s/Vaden Fitton ------------------------------ Vaden Fitton Director POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Lauren N. Patch and Barry S. Porter, and each of them, as his/her true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him/her and in his/her name, place and stead, in any and all capacities, to sign any and all future amendments to this Registration Statement and documents related thereto, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission and The Nasdaq Stock Market, granting unto each of said attorneys-in-fact and agents, and substitute or substitutes, full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as he/she might or could do in person, hereby ratifying and confirming all things that each of said attorneys-in-fact and agents, or his or their substitute or substitutes, may lawfully do or cause to be done by virtue hereof. IN WITNESS WHEREOF, the undersigned has hereunto set his hand as of the 20th day of September, 1999. By: /s/Stephen S. Marcum ------------------------------- Stephen S. Marcum Director POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Lauren N. Patch and Barry S. Porter, and each of them, as his/her true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him/her and in his/her name, place and stead, in any and all capacities, to sign any and all future amendments to this Registration Statement and documents related thereto, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission and The Nasdaq Stock Market, granting unto each of said attorneys-in-fact and agents, and substitute or substitutes, full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as he/she might or could do in person, hereby ratifying and confirming all things that each of said attorneys-in-fact and agents, or his or their substitute or substitutes, may lawfully do or cause to be done by virtue hereof. IN WITNESS WHEREOF, the undersigned has hereunto set his hand as of the 20th day of September, 1999. By: /s/Jack E. Brown ------------------------------ Jack E. Brown Director POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Lauren N. Patch and Barry S. Porter, and each of them, as his/her true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him/her and in his/her name, place and stead, in any and all capacities, to sign any and all future amendments to this Registration Statement and documents related thereto, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission and The Nasdaq Stock Market, granting unto each of said attorneys-in-fact and agents, and substitute or substitutes, full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as he/she might or could do in person, hereby ratifying and confirming all things that each of said attorneys-in-fact and agents, or his or their substitute or substitutes, may lawfully do or cause to be done by virtue hereof. IN WITNESS WHEREOF, the undersigned has hereunto set his hand as of the 20th day of September, 1999. By: /s/Wayne R. Embry ------------------------------- Wayne R. Embry Director