hi i have been a pc user for ever but now i think is time for me to move to mac cause i really like it like i love my iphone and i no i would love this, anywho i have never own a mac and dont no that much about them , i no theres a few different model of mac computers , i want to purchase the imac thats 20 in with glossy screen for 1199 thats the one i want, the thing im wondering wats the difference between the 1199 new one that came out and in front of the box it shows the imac with a purple background, and the one that came out last year that shows blue in the background? wats the difference besides the box of course? thanks and sorry if im asking something stupid lol