What computer? As in desktop or a laptop? I'll assume desktop since you already have a laptop, but if you want the best, you'll want a Core 2 Quad Extreme with 4 gigs (well, two is also possible, but assuming a money is no limit) of high performance, aka overclockable, RAM and at least one 8800 GTX. But I can't exactly say what you're looking for, because the "best" I can say is pretty much a list of the most powerful and expensive components on the market.