I recently bought this computer: http://store.apple.com/us/product/F...-23ghz-quad-core-intel-i7-with-retina-display That said, I'm having slight buyers remorse, wondering if, given the fact I use the computer a lot for making music with Logic and video with Final Cut, I should have gone with the faster processor here: http://store.apple.com/us/product/G...-26ghz-quad-core-intel-i7-with-retina-display I'd rather not spend the extra money......but I'd do it if it was worth it for the processor. I don't need the bigger hard drive. It's the processor part I find appealing. I know I can look at speeds online in tests. But, I'll admit, those numbers dont mean too much to me. I don't know practically what it means. So, I figured I'd ask the list. I know this is a difficult question, but practically, how much of a speed difference is there between the two? If this will be my workhorse for 4-5 years, is it worth the extra money for the speed?