Well as you know I'm running XP, with 1024mb ddr400 dual channel ram with an athlon64fx53 (s939), the IDE is a 180gb western digital @ 7200rpm, and the sata is a 160gb samsung, i assume its running at 10000rpm if thats the default sata speed. I'm not doing anything too heavy like cad, but I would consider myself a power user.

I've done some basic testing and my computer does seem faster if I keep the pagefile on the c:\ sata drive.