Glad I found you guys before I made an investment of more money. A few years ago I built a PC following instructions downloaded from website. Components are following: Antec Plus660AMG with 330 watts power supply case, AMD athlon XP 2500X Barton 333 FSB chip, Thermaltake volcano9 cooler, Abit NF7-S motherboard, Crucial 256MB PC2700 DDR 333, Predator MX4000 Plus video card. So far I've used it for simple web browsing and emailing. I'm beggining to get into games and would like to add a couple of games: grandprix racing and some kind of airplane flying game. Can I add these games simply with the system I have or do I need to upgrade? Second, can I use some of the hardware I have in the upgrade. I want to get enough power for what I'm going to do. Thanks for the help.