I currently run 4GB of ram on XP-64 and I was thinking of going to Vista-64 bit when I upgrade my computer when the R700 comes out in June/July. I will be getting 8GB of ram and placing this current MB/CPU/Ram into a case for my GF. My question is, is there a way in Vista to actually take advantage of 8GB of ram in the sense that it doesn't use the page file any more? Is there any way to load things into the ram and not into a virtual files on my hard drive? I would love to do it on XP-64 but as best I can figure out a limition of XP doesnt allow this to work with any great effect.