Hi, Im looking at getting a Macbook Pro 15" to get into iphone development and also that its something that Ive wanted to try out for quite some time (long time Linux/Windows user). I do a fair amount of photo editing and occasional video editing. Budget wise, my eyes are firmly on the baseline Macbook Pro 15" (2.53ghz with the Nvidia 9400M. Im holding off buying until 10.6 is out. However, with Snow Leopard coming out, Ive heard that it can offload instructions to the GPU. Question is, is it worth putting the extra $$s and getting the next step up which has a 9400M and 9600M both?? Anyone with experience with the beta builds?? Thanks!