The last 3 systems I built are in 1 Galaxy w/ 300W power supply, and two Koala's with 350W power supplies. The basic builds on the first two are K7S5A Pro motherboards, XP2100 Tbred B, 512Mb DDR, 1 Maxtor 80Gb ATA133, 2 CD/DVD/CDRW drives, ATI Radeon 9200 DVI. All are running rock stable (I check up on my customers

) on Windows XP Pro.
The newest one is Abit NF7-S, XP2400+, 1Gb Geil PC3200, 1 Maxtor 120Gb ATA133, LiteOn CDRW/DVDROM drive, Pioneer AO6 DVD +/- RW burner, Sapphire Radeon 9200 SE, Dlink Airplus Wireless PCI card in the Pro Source Galaxy (Grey/Beige) w/ 300W PSU. My cousin loves the system, and has been going nuts burning DVDs with it
The LED bars on the front of the case look WAY BETTER than the pictures show, and double as a really cool night light if it's in your bedroom