ATI Mobility FireGL V5200 or V5250 256mb

Hello,

I am thinking of purchasing a Lenovo T60p laptop and it comes with either one of the above spec for it's GPU.

Including a Core 2 T7200, 2GB DDR2 667 and Vista Biz.

I know this notebook can do pretty much anything I need it to do, but I would also like to play the occasional game on it more specifically Civilization IV - just wondering if the above ATI Mobility is good enough to play Civ at decent resolutions? AND also play DVD's pretty well?

Also, roughly, how does it compare to the Nvidia GO graphics?

Thanks.