I am thinking of buying an iMac 2.0 Core 2 Duo 17" screen, it looks new condition. in every way. It comes with 1gb ram but I think I can upgrade to 3gb or 4gb. It is from a local seller from Craigs list. I went over to have a look and tested it and everything worked great. He is asking $700 for it. Is this a good deal or am I overpaying? I have new macs but saw this and thought well hell it might be worth getting to play with. I can't seem to find much info on it. Here is the Model # MA590LL/A Any comments would be appreciated. Thanks.