I'm kind of trying to plan my next laptop move here and I'm torn on what I should do. I'd really like to get a 15" but the beast is a fair chunk of change and the 12" is more affordable. I'm looking at the edu discount with the $100 rebate. If I go with the 12", I think I'd get the 12" Superdrive model. For the extra $100, it seems like a no brainer to get the superdrive and larger HD. If I go with the 15", I'd get the stock combo unit. I'd love to get the superdrive model with extra video ram, but it's just too much for my frugal side to handle. The models are $300 difference and if I get the 15" I'd like for it to last me a while. I had a 1GHz 12" I recently got rid of. I liked it, and think I could live with another 12" again, but the biggest problem I had was the lack of horsepower. So, is there any difference in speed between the 12" and the 15"? I thought there was a bus speed difference , but my research seems to indicate both operate at the same speed. Does the 15" have anything else going for it that's not available in the 12"? Also, what about resale value? Does the 12" hold better value? It looks to me like the 15" models drop quite a bit on the used market compared to the 12". I'm also definitely waiting till WWDC and hoping for Freescale's with better res on the 15".