UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549




                                    FORM 8-K

                                 CURRENT REPORT
                     PURSUANT TO SECTION 13 OR 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934


         Date of report (Date of earliest event reported): July 24, 2007
                                                           -------------


                                 CDW Corporation
                                 ---------------
             (Exact Name of Registrant as Specified in Its Charter)



           Illinois                        0-21796              36-3310735
           --------                        -------              ----------
 (State or Other Jurisdiction      (Commission File Number)   (IRS Employer
      of Incorporation)                                     Identification No.)

               200 N. Milwaukee Ave.
               Vernon Hills, Illinois                              60061
               ----------------------                              -----
      (Address of Principal Executive Offices)                   (Zip Code)



       Registrant's telephone number, including area code: (847) 465-6000
                                                           --------------



Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions:

[] Written communications pursuant to Rule 425 under the Securities Act
    (17 CFR 230.425)

[] Soliciting material pursuant to Rule 14a-12 under the Exchange Act
    (17 CFR 240.14a-12)

[] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange
   Act (17 CFR 240.14d-2(b))

[] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange
   Act (17 CFR 240.13e-4(c))



Item 2.02 Results of Operations and Financial Condition.

The following information is furnished pursuant to Item 2.02.

On July 24, 2007, CDW Corporation (the "Registrant") issued a press release
announcing its second quarter 2007 earnings. A copy of the press release is
included as Exhibit 99 to this Current Report on Form 8-K.


Item 9.01 Financial Statements and Exhibits.

Exhibit 99, Press Release dated July 24, 2007, announcing second quarter
2007 earnings.



                                    SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.


                                            CDW CORPORATION


Date: July 24, 2007                         By:      /s/ Barbara A. Klein
                                                     ---------------------
                                                     Barbara A. Klein
                                                     Senior Vice President and
                                                     Chief Financial Officer




                                  EXHIBIT INDEX

Exhibit Number        Exhibit
- --------------        -------
99                    Press release dated July 24, 2007, announcing second
                      quarter 2007 earnings.