Although I run a Shuttle SN45G, I've got Athlon XP 2500+, 80Gb HDD, 1Gb DDR, Audigy II soundcard, and Radeon 9800 Pro All-In-Wonder. It all worked with a 200w PSU until I added the Radeon, then I needed to upgrade to 250w to make it work. If you've got a standard 1 drive system and nothing...