I'm looking at ordering a dual 2.0ghz G5, and was planning on getting 2GB of RAM. Then I saw that I could get up to 4GB for another $500. I'm thinking that 2GB is pretty good, and 4GB is probably overkill for someone who isn't a pro-user. Yeah, I might do some light video editing, and I'll probably play SimCity4 and maybe even Doom3, but I'm thinking that I'd probably be better off upgrading to the 2.5ghz if I really want to spend another $500. What do you all think?