Many thanks, John - great review.
When I got my XPS 2 there was no other option with the 6800 Ultra due to the Dell/nVidia deal, now it looks like I'll have a genuine choice for my next notebook.
I've owned this for almost 9 months and not had a single problem (touches wood). I'm not much of a techie and really like how easy it is to swap out ram and optical drive.
I'm off to join the rock forum, it looks as informative as this excellent resource.