I have a guy offering me $1800 for my 15" MacBook Pro, 2.53 GHz i5, 500 GB HD, Hi-Res Screen. If I sell it, I am going to buy a 3.2GHz Intel Core i3 iMac for exactly $1,399 (I get the student discount and this weekend is tax free weekend in my state). I would also get a free iPod touch which I would then sell for roughly $150-175. With the extra cash, I would buy a used MacBook for portability. I am trying to figure out whether or not this is worthwhile. What do you think?