I know this topic has been covered many times, but I want to know the performance measurements behind it. I get the pleasure of upgrading my parent's computer over the holidays. They have my old BH6 with a 300A overclocked to 464. They managed to get in on the deal with the GeForce 3 Ti 200 at BB (the same with me), but now they want a faster CPU to go along with it. They do a lot of things with it. My mom is just a normal user (i.e. word processing, web, etc), while my dad is game player (UT, Ghost Recon, etc). I know the PIII 800's are more expensive, but would it be worth the price to go with them, or do you think a Celeron 1GHz would be enough??