Hello all. I just found these forums today. I bought a 20" iMac 2.66, 2g, 500 hd the other day and am just waiting for it to be delivered to my house. Reading these boards has now made me realize I made a stupid mistake and should have waited. Does anyone think it's possible that I could take my unopened comp to the Apple store and they would exchange it for a newer model and I will pay the difference?