Not a bad choise, per say.... (Score 1)

The Celery series procs have been pretty okay in the latest incarnations. Okay performance for the price. For heavy 3D gaming, you might consider upgading the video card instead. I have a VooDoo2 in an P200MMX(overclocked 166) that ran circles around my buddy with a PII 400 with a cheap "onboard" AGP video. You could save yourself a bundle, and then upgrade the rest later when money isn't such a problem. If you still feel the need to replace the board, ASUS has always been good to me. ABIT has a some good boards. TYAN has some kick ass platters, too. A good place to check would be http://www.maximumpc.com/ for hardware reviews. Good resource. If you stick to an Intel BX chipset, you'll be pretty safe. If anyone disagrees with me, fine. Just my $0.02CDN.