sounds like a plan, i dont know why you would mess about with disableing agp or just pulling the card though, any upto date reg cleaner will be good enough, use several in cycles to be sure, but if your machines registry is that full of junk, then its time to spend 15 minutes (or less) reinstalling that 'drive image pro' sister to 'partition magic' backup you made last time you collected up and installed your fave tools/apps etc.
you DID make a drive image pro (or some other lacking tool LOL,to make a) backup to save the install from scratch didnt you
