Thanks guys, I did find a site that showed results of Readyboost + 4gb ram worked faster but slower in some cases. (But I deleted my history =P)
What do you mean does not give memory address? I have 4gb ram +1gb GFX card which is 5gb, does that slow down anything?
And I think I'll stick with vista, I'd rather stay with it than doing stuff I'm not sure on.