I have a Macbook Pro that i bought in september of 2009. It still works great but has some problems...the entire keyboard doesn't light up anymore, the disc drive doesnt work and its missing the X key. Im selling it because i have a new one and am sick of storing it/lugging it around when i move. Its the 13' and just is the basic one from the store with no upgrades. How much should i sell it for? This guy contacted me who refurbishes old computers and said it was worth 100, but i have a friend who said the hard drive alone was worth 170. Super untechy and confused! Any advice?