I'm buying a new notebook and am wondering if I should cough up another $149 for vista ultimate, which is 64 bit? Is this a good idea or is staying with vista premium a better way to go. I'm already getting 2 gig of memory so its not like that is a problem and I'm getting the c2 duo 2.2 ghz w/ 4mb cache. Just wondering what would be best. I've read the guide to choosing which windows version you want thread...how do I know what software (games) and hardware will work? Thanks!