I recently switched from a Macbook to an Asus UL80VT running Windows 7. The reason I did was that I was spending 85% of my time on the Windows virtual machine for may day to day business activities. My 13 year old was definitely happy I switched since he got my Macbook.
I cannot be happier with my ASUS UL80. My only beef was that if I wanted the dual video adapter, Win7 Home Premium was the only version that was available. I tend to reload the OS when I get a new Windows computer anyway, so for me this wasn't a huge issue.