Make a list of the IBM ThinkPad and PC models you own, then get a personal support page with information and downloads for your machines, and optional email notification of driver updates. http://www.pc.ibm.com/support
ThinkPad user forum, ThinkPad information and sales. Hard-to-find parts such as disk drive mounting shells. A useful resource for ThinkPad owners. http://www.thinkpads.com/
My TrackPoint caps have worn out! Where can I get some more? Direct from IBM Parts at this site, or by phone. (Those caps are part #84G6536, and they have every other ThinkPad part too.) http://www.direct.ibm.com/parts