System ram is never going to be a problem unless you start doing really bone-headed things like loading a cd full of wavs into memory. We're not playing with speccy's any more ( though I wish I was sometimes ;) ) and Windows isn't limited by physical memory anyway, it'll just mean a bit more swapping.
Realistically a few extra pivots isn't going to notice.
Realistically a few extra pivots isn't going to notice.