Since my Dell died last week and there are new models today, it is the best time to get a new MacBook Pro. I am already deciding on the high end 15 inch since the processor is better and the graphics card is way better, and will be able to do more for longer into the future. The only things I am curious about is to upgrade the screen and the hard drive. I looked at the previous-gen's reg- and hi-res screens and I am fairly confident that the hi-res makes things a little small for my taste. Now, should I bother to get the 7200 RPM drive and lose some space? Or is the difference of 5400 to 7200 RPM negligible? Thanks!