I'm wanting to sell my 15" MBP to help fund an upgrade, and well need a ballpark on what I should list it for. 15" Macbook Pro 2.2 GHz Intel Core 2 Duo 2 GB DDR2 SDRam Has Adobe CS3 Design Suite installed, and will stay with it. Just under 1 year old. What would you guys list something like this for? Thanks in advance!