Looking to get a new desktop and I've decided an iMac fits the bill perfectly as I believe it's the best value on the market by far. Anyway, I plan to get Fusion 3.0 here fairly soon, and will likely use Windoze7, and a distro or two or linux with it. Do you think that having 8GB of RAM would benefit enough to go for it? (It'd just order it afterward I'm sure, and install myself) I would be using both MS and Linux OS's for work, and hopefully some play if VM's will allow some decent gaming. Also, any thoughts on getting the quad core vs the dual in terms of using VM's? Huge difference?