Yeah your not gonna get those specs cheap in a laptop, Ive got the XPS M1710 (and just getting it up to 4 gig of RAM's costing £370)

3D worlds got a a review of laptops for 3d, there all over £1500/$3000, incidently the XPS won

Also to be prefectly honest if your not going to be moving it about much, which I do from uni and back every day, get a desktop, as there pretty heavy, in fact the charger for the XPS is stupidly large and heavy, probably weighs half of the laptop!