Hope this isn't some sort of heresy posting a MacWorld article, but I found this to be pretty informative in deciding what to get on my next Mac. New Built-To-Order MacBook Pros Benchmarks are compared between the standard high-end 15" (i7 w/ 4GB RAM, 5400rpm HD) and an upgraded 15" with 8GB RAM and 7200rpm HD. Comparisons are further made between the standard 17" (i5 w/ 4GB RAM) and the built to order i7 option. Bottom line (if you don't want to read it) is that the processor and RAM aren't giving huge increases. The gains are seen mostly in processor intensive stuff, but the gains aren't huge. I was pretty much sold on upgrading a 17" to the i7, but now I think I'll save the $200. Further tests are made comparing a 27" quad core iMac which does the best. Almost makes me want to get an iMac for the serious work (I have my current MacBook hooked up to a 24" screen now) and an iPad for casual lounging in bed web surfing, but I can't quite make that leap just yet.