Help With Choosing

Hey all! I need some help. I want a laptop that is good for work, but
also very good for play. I'm going into 3rd year high school, so I need
both :-) See, I want a 512mb graphics card, preferably from... nVidia.
Is there a card like this which is good for gaming? I've heard that the
Quadro series are not as good for gaming as the 7 series. The thing is
that I can't seem to find a 512mb video memory card.

Is there any laptop, around $2000, with that good of a graphics card?
If not, could you guys reccomend a card from Radeon or something to me?

Thanks in advance!