Catalyst 7.5 is out - use the modder from DriverHeaven if you want to use them on Thinkpads

Downloads for Windows XP, Vista 32-bit, Vista 64-bit, and others.
Release notes for Catalyst 7.5

Utility to add Thinkpad (and other mobile) support.

Also, if you follow Autopatcher at all, May 2007 Full release is finally out.
Great for getting machines up to date with patches, offline, without a WSUS server.