Here's my suggestion, get two cheap 7200 RPM harddrives and run them in RAID 0. Much faster loading times, and you can do that for about 70-80 bucks.
and you've got 160gb of RAID 0 for 71 dollars (or you can up it to 2 x160gb HDDs).
I also agree with the g.skill suggestion. Faster ram, and they're a very very very reliable RAM manufacturer.