So a couple weeks ago I ordered a CTO 2.8 Octo everything standard except I added an 8800gt. So today I picked up an addition 2gb of ram and one of the new 640gb 2 platter WD harddrives. Soon I hope to pick up and additional 4gb of ram and another 640gb WD for Raid 0. After I worked on my budget this evening I realized I have an extra $150 so I can either go ahead and pick up my other hdd or 2 more gigs of ram. So my question is that which one in your opinion should I go ahead and pick up first the hdd or the ram?? Thanks. P.S. I'm loving this beast. Its the fastest thing I've ever touched.