One approach is to copy them into the same folder, then use one of the duplicate utilities listed at http://www.slipstick.com/addins/contacts.htm

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Sue Mosher, Outlook MVP
Author of Configuring Microsoft Outlook 2003
http://www.turtleflock.com/olconfig/index.htm
and Microsoft Outlook Programming - Jumpstart for
Administrators, Power Users, and Developers
http://www.outlookcode.com/jumpstart.aspx
>I would like to merge 2 seperate contacts with the same name but different
> data...one has email address the other has phone numbers.
[quoted text clipped - 10 lines]
> JSmith@msn.com
> 425-555-1212