Looking for opinions here. The hard drive on my 2.4 Ghz Al MB failed yesterday after a whopping 2 weeks. Long story short, they're sending me a new drive to replace myself. But that got me thinking.... Now that I have to replace the hard drive anyway, is it a good idea to spring the $100 and get a larger (400 or 500 GB) drive or a faster (7200 rpm) one? Any brands to avoid? Thanks! P.S. this was my 3rd call to Apple after 2 weeks. I had my bluetooth flake out on me once and the computer was originally shipped to me with a CD-ROM Test disc from the factory still stuck in the optical drive. This computer is starting to make me wonder about the quality levels.