AMDs perform better in graphics benchmarks and games, its been proven by many times . Whatever you do don't get a Celeron . There is no need to get a Celeron when they cost more than an Athlon XP and the XP smokes them . If you get an Athlon XP get a 2500+ which is $80 and Overclock its FSB to 400MHz . Then your memory will perform at its rated speed . Athlon XPs perform slightly worse than similiar P4 s overall , but still do better in games .
IF you have the money get a P4 or Athlon 64 , if you're short on cash get an XP .