Okay need some help here. I have two alternatives here. I have an SR MBP (great machine, love it). But I want to have a new keyboard and screen to use when I am home. The 20" cinema display and the new keyboard plus iWork 08 cost almost same as the new iMac 20" plus iWork 08. What should I go for? If I take the iMac 20" 2,4ghz should I get it whit 1 gig ram and buy more from some other store?