ultmate gaming laptop

Hm...it's a 15.4 inch laptop right? I don't think there's much you can just drop in and your machine will suddenly become a gamer. Your laptop seems to have integrated graphics, and I doubt the designers just left a free MXM slot for users to stick in other graphics cards. Plus 15.4" laptops don't have enough room for the relatively huge graphics cards and their cooling (my 7950 GTX is 3" by 4" or so, plus a huge copper cooling heatsink). I'm sorry mate, at best you can stick in a better cpu and more ram, but I don't think that laptop will ever evolve into a gamer's laptop.

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.

killernotebooks, Falcon, Widow.... the list goes on. lol

Aw, come on Maziar, I thought everyone on the internet agreed not to buy from Alienware anymore

yeah u r right, but M9750 is a very nice laptop (very good reviews, but its expensive )