There was a roundup of "power laptops" in this/last months PCFormat - I'll try dig it out for you. The general impression appeared to be that nothing comes close to the power the XPS G2 at the moment, at least not until Alienware come up with something unjustifiably expensive
. It's a sound desktop replacement, especially with the 6800 Go chip in it. Shame the only choice of processor is "Intel" or "Intel" at the moment.