Not sure what that rig cost that you have listed there, but take a peek at these..

I have the X305 Q706 Qosmio that I replaced my desktop with and I have been a real happy camper.

I have hauled this beast to Oklahoma once for a week and it did great.

So far I have zero graphics lag and it is very stable.

http://www.toshibadirect.com/td/b2c/pdet...osmio_X305_Q706

Cheers
Grim