So I've decided to finally upgrade my ram and add another Hard Drive... Here is what I think I'm gonna get, any advice or experience with any of them? Hitachi Deskstar 7K1000 750GB SATA2 7200RPM 32MB Cache Hard Drive and Kingston KTA-MP667AK2/2G D2-667 2GB (1GBX2) Does this sound like a good combo? Currently I have 2 x 512mb and 1 x 250GB, 1 x 500GB Hard drives... I'm also wondering would it be a good idea to make the 750GB as my primary hard drive? Or is it best to keep with the original 250GB that came with the unit? Thanks to anyone that can help me out.