I bought this Asus Pro57Vr notebook (scroll and click "Specifications") about 10 days ago; it's reported as M51VR on Ubuntu.
It's very nice, for its price. Plus, I've grown fond of Asus over the past years, due to the great quality/price balance. After I've stuffed my desktop system with a lot of Asus components, I thought I'd buy a laptop from them as well.