I was disappointed that there was no MBP refresh today, as I have been waiting to buy a notebook. I use an iMac as my home base, but I need something portable for school. I don't know much about processors and components, but are the new processors worth the wait? What the difference between them and the 2.26Ghz Core 2 Duos? All I want is a computer powerful enough to go two or three years without becoming obsolete and a pain to use (this has happened to me twice with HP laptops). Should I wait for the new processors, go with the low end current ones, or drop extra cash for the high end ones? And how is the speed affected?