I'm planning to make the move to Apple and have visited our local store several times to test drive the iMac. Size and budget wise I like the 2.4G 20" model. I've also read posts re 20 vs 24 (glare, brightness, etc) and also read the post regarding upcoming enhancements to the iMac. My questions are...Has apple made any changes to the 20" display in the past year? (not just white plastic to aluminum trim). And is there any chance the display will be enhanced in the near term?