Not sure that anyone could be cast iron specific for you yet, since MS have not published the minimum or recommended system spec for Vista. There has been a lot of speculation and the spec of the Evesham according to some will do the trick. I have also read however that for some of the features on Vista a dual core processor will either be required or will instead be needed to run the system optimally. Until we know nothing is certain. I have read as I am sure you have that Evesham make a particularly good PC with good back up. You may wish to type in Evesham and search on this site for past comments.