I have just bought a Western Digital SATA150 Raptor, 10,000 rpm, 8MB cache. It really doesn't want to do anything at all. I bought it a brand new HighPoint controller instead of the onboard and it still doesn't want to do anything.
My first problem with WD, but I expect problems with most HDD manufacturers at some point.
[size=0.5]Full Aluminium ThermalTake Case
AMD Athlon XP 3200+ *400 FSB* Barton (2.2GHz)
ThermalTake Volcano 11+ Xaser Edition Air Cooling
1024MB Corsair TwinX XMS 3200 (Dual Channel 2x512) 2-3-2-6
256Mb XFX 7800 GS EXTREME
2x WD Raptors (10krpm 8MB Cache) 36.7GB using RAID -0
Video Logic SonicXplosion 5.1 Soundcard[/size]