assuming your mobo isn't anything gonky, then there's no reason tha X won' work. i'm running the same card as you, and you'll initially want to use the 'nv' driver, which i think is just listed in the hardware list as a generic geforce card. like i said, run Xconfigurator or xf86setup to get started. if you can give us proper actual problems to help you with we will. but X WILL run really well on it.
eventually you'll possibly want to get teh closed nvidia drivers which have GL support. from nvidia.com that's later tho.