Well guys it looks like I finally joined the iMac family I was going to wait for the new iMac but I picked up a minty mint 21.5" iMac 3.06ghz 4GB 1TB with Radeon 4670 this morning for...drum rolls....$650! I almost bought one a couple months ago but I was going to wait out til August/Sept to hear a new iMac announcement - but this deal was way too good to pass up! Now I'm posting from my new (to me) iMac Anyways, in terms of RAM upgrades, what do you guys normally do? I do a lot of PS and I want up it from the current 4GB configuration. Do most people just do 2 more 2GB or 2 more 4GB (is that even possible?) - and for those daring, have anyone ever done four 4GB in this iMac?!