I just wanted to pass this experience along to everyone else. Last night, I had someone hit me up on MSN asking me about what I thought of my 8400. So instead of just saying the usual "the cpu is a beast, it should handle whatever you want it to", I decided to put it to the test. So while running windows XP with sp3 and none of the "services" turned off, I booted up mechwarrior mercenaries 4, I booted up ArmA Combat Operations Demo, I started to install BF2, and then booted up COD4 and started to play COD4. I didn't have the first bit of lag, NONE. Granted, my CPU's temp went up(as I expected it to), but the damn thing wasn't bogged down in the slightest bit. The only performce hit I did noticed was loading maps in COD4 took alittle longer to do(a matter of a few seconds). This thing is a awsome performing CPU, I couldn't be happier, thx to all who advised me to get it over the q6600 when I was putting this system together. You and it rocks!