I'm buying a used MBP in the next couple days and have a couple questions. 1. Am I getting a good deal? I'm pretty sure I am based on refurb, etc. It's a CD 2ghz, 2GB, 80GB, and AppleCare through 5/09. Price is $1350. 2. It's a local deal and I'm meeting him (probably at Starbucks). I'd like to run a diagnostic program to make sure the computer is A-ok. What's a good diagnostic utility? 3. What's the Apple site where one can search for a serial number to get information about the machine? Any other information anyone would like to other is appreciated.