I have recenlty decided to switch from my dell desktop to a mac powerbook and after looking around I decided that the 15" was right for me. While it would be nice to buy the new powerbook before I return to school (8/23), I can hold out for as long as nessasary. While I understand that no one knows when the aluminum versions will be out, I amconcerened about how the prices of the newer versions will compare to the current. I am able to get the 15" superdrive for $2,299 with my eduacational discount, along with an aditional $200 dollars off from an apple rebate for buying an ipod and power book at the same time (good untill 9/27). While the features the newer version will have make me want to wait, the price is right now and I am hesitant to pass up the offers in fear of the newer versions costing considerably more. I also would hate to pass up on enahncements for a few bucks. I would really appreciate it if anyone on this board that is familiar with how apple has priced newer versions of models in the past can give me an idea of what to expect. Thanks in advance for your help.