Apple has a 14 day exchange policy if you a new model comes out within those 14 days, you can exchange it. I bought the 20" iMac 2.4 with 1 gig of ram. I bought 2 more gigs of Ram (3rd party from Crucial.com). I found out I could only use one of those gigs in the other empty slot. Question is: when I exchange this mac for the new one (2.66), it comes with 2 gigs of ram... will I be able to use my ram (2 sticks - 1 gig each) in the new mac?