I'm in a situation here, and I need a bit of advice. I currently have a 2.16GHz Macbook Pro C2D (15"). It's not a unibody, and I've had it for roughly 2 years. It's a good machine, but I'm getting itchy for an upgrade. I got offered a last-gen MacBook Pro 15", the one with a removable battery, for $1300. It is a friends computer, in wonderful shape, has built-in video cards, fully loaded, etc. The only problem...no warranty. Now, should I try and sell my MBP and upgrade to this? Or maybe sell mine, and get a new, 13" MacBook Pro? I am in school, and I do pretty basic stuff. I use the iApps, a few Omni programs, and VMWare occasionally. Advice is appreciated.