I have the stock early 2008 MP. I had around a $400 budget for HDD/RAM, but I jumped it a bit. I ordered from newegg: Western Digital Raptor X 150GB HDD, 10000RPM - $169 Samsung Spinpoint 500GB 7200RPM HDD - $109 From OWC/Macsales: 4.0GB (2x2GB) DDR2 800 mac pro memory - $199 From Guitar Center today: M-Audio 88es Keystation, 88 key midi controller - $199 Last one was a splurge, but I love it. Awesome for the price. My main thing here is, did I do a good thing by grabbing a Raptor? I felt my stock 7200rpm drive wasn't really up to speed with the rest of this beast so I kinda went out on a whim and decided that I'd forfeit 1TB and get a Raptor for OS X and my pro apps and then 500+320+free bay for my stuff for now. I plan on getting 8GB ram total in the form of two more 2GB sticks in the future, but I don't have the money. The 8800GT comes first, too. Does anyone else run a Raptor?