On most occasions, my harddrives (which are in a RAID 0 configuration) don't really do much work. They load the crap for Vista, and it's done. I dont have many startup programs, yet it says it is using 960 MB of memory. When I installed Vista originally, it used about 260 at the most on startup. My harddrives are constantly reading information for about 20 different SVCHost.exe executions running at the same time.