I've currently got a 15" MPB 2.2GHz Santa Rosa machine. A friend has the new low-end aluminum Macbook. And more or less offered a trade. Not a straight-up trade, obviously. Trade + cash. And it occurred to me: as much as I love the screen size and whatnot, maybe. Maybe. Hard drive is bigger, RAM is the same, CPU speed is mostly negligible. (I don't do too much heavy work. Occasionally some fairly minor photoshopping, video once in a blue moon.) The main concern I do have is the GPU. I play games in Boot Camp. TF2, KotoR, all sorts of stuff of varying newness. How does the new MB stack up? MB improvements mean little to me. Side optical drive is nice, glass trackpad I could care less about. Opinions? A little less weight on my shoulders might be a nice thing, but certainly not a necessity.