After vowing that I was going to wait, I now find myself considering Ebaying my 1.67 15" Powerbook (purchased spring of last year) and going for the new MacBook Pro. I do a lot of work with photos and the slightly larger, brighter screen is very appealing...not to mention the notion of dual processors. I realize that I will be running under Rosetta for a while as far as Photoshop is concerned, but this is a trade-off that I am willing to make. I'm just wondering if the $500.00 price difference is really worth going for the top of the line model? I do like the fact that it ships with a 1GB stick of RAM vs a 512 MB stick, but just how significant would the performance gain be with dual 1.83 processors over dual 1.67? Also, keep in mind that if I were to go with the dual 1.67, I would definitely invest another $100.00 or so (this seems to be the going price) and bump up the RAM to 1.5 GB. Would really appreciate input on this...thanks all.