I'm looking to buy a used MacBook Pro from a friend. I'm not sure how much to offer for it. Here are the specs: 120gb HD 2gb RAM 2.2GHz Intel Core 2 Duo Mac OSX 10.5.8 Microsoft Office Suite Battery Life- approx 3 hours There appears to be no dead pixels and the speakers/headphone jack/webcam are working. It's about 2 years old and comes with a hard case sleeve. He's the original owner. I'd like to mention that I'd mostly be using this to develop iPhone/iPad Applications and possibly Graphic Designing (PsCS4, etc)and music recording (MIDI). So... the big question... How much (reasonably) do I offer?