EXHIBIT 23.4     
                   
                CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS     
   
As independent public accountants, we hereby consent to the use of our report
(and to all references to our Firm) included in or made a part of this
registration statement.     
                                             
                                          /s/ ARTHUR ANDERSEN LLP     
   
Seattle, Washington     
   
June 19, 1998