The computer I am using right now is a Dell Lattitude E6500 with 8 Gig Ram and Windows 7 Ultimate 64 bit. It is my work laptop computer, I'm on the road today. I don't have G5 on this machine, but I do have it installed on my home computer which is a Dell Inspiron with 4 Gig of ram and running Windows 7 Home Premium and it runs just fine. I specifically asked for this level of computer for work because of what I have to do with it.... very large data files processed as quickly as possible for analysis. So far, I've not found anything that won't run on this computer. If it runs on Vista, it pretty much will run on this.

CGr.