Macbook for Nikon d90 deal?

Hi, I have a like brand new Nikon D90 kit with 18-105mm lens and 70-300mm lens, comes with filters too. Camera bag with fits everything. Someone wants to trade a late 2008 Macbook Pro 15.4' 2.4ghz with Microsoft office 2011 and photoshop, they also just got a new 4gb ram and battery. The mac is in excellent condition. The deal is there macbook and $550 cash for my nikon d90 kit.

What i want to know is, is this a good deal for me? Also will the macbook be good for me in college, which is in half a year.

A new D90 and kit for a 3 year old laptop - I don't think so.

You could buy a new PC laptop for much less.

What can a macbook do that a pc laptop can't? Absolutely nothing.

According to everymac.com it's current retail value is $1200 - $1300 US. That is if the supplied discs are included.
http://www.everymac.com/systems/apple/macbook_pro/stats/macbook-pro-core-2-duo-2.4-aluminum-15-late-2008-unibody-specs.html
I've got an early 2008 MBP that is still running fine and I wouldn't hesitate to use it in college if I were going.
If you do go for the deal just make sure all the discs are included with the sale, that goes for PS and MS Office too. At the very least the licenses for the 3rd party software.