So..it's time for my dearly beloved 17" MacBook Pro to finally go. It's a great machine, but it's beginning to show its age, and even if the good old 8600M GT graphics are still working just fine with no replacement after 4 years of flawless service...I'm looking for a new 17" MacBook Pro. 1. How much is a reasonable price to pay for this model (2.4 Santa Rosa C2D, 4GB of RAM, and a 320GB, 7200RPM hard drive)? How much could I realistically sell it for? 2. What should I be looking for to replace it? I can't afford much more than 1400..(meaning I'm sticking with eBay) Should I get a 2.66-3.06Ghz 17" C2D, or go for a Core i5/i7 model, if I happen to find one cheap enough? My requisites are that it at least has to be a unibody 17", and that's about it.