This is a two part question:

1. I recently reformatted my comp completely, and installed WOW, now i have massive visual bugs. Pollygons go off infinitly. Not all just some pending on how i move the camera. But it is different everytime. I renamed files, moved files, updated the game, reinstalled the game, and updated my driver. But everytime i update my driver it makes my computer not able to start. But the game worked without these bugs before i reformated it and i never updated the driver then so why am i getting these problems? Blizzard won't help they are useless and the only reason i support Blizzards game WOW is because it is one of the better MMORPG's out there. (Don't tell me to play another MMORPG that is not what I am asking here)

2. Where is the best place to find cheap computer parts besides Newegg.com? I checked out the pricing of a computer i wanna build and it costs 4500 bucks. Anyone know of anything?