I have a secondary drive with "free" copy of Vista (32 bit) Ultimate. I like aero but don't like how its a memory how. I have 1 gig of ram and after start up it takes up abut 45% of it. So, I got some windows themes for XP that looks like Aero. But thats beside the point. I have an AMD 64 3000+ that haven't really used. Meaning that I haven't used a 64 bit OS. Since I'm not really thrilled with vista I don't thin it would be worth to get vista 64 but, I would like see if I can get more out of my computer with a 64 bit OS. After reading on it the best linux for me would be Ubuntu which happens to have a 64 bit version. I mainly use my computer for the internet, gaming, study software and photoshop/flash stuff. So, is it worth for me to format the drive and put on the 64 bit Linux or just leave vista on there and forget about it?