I'd go Samsung as well. The spec's they do won't blow any other manufacturer out of the water, but Samsung's have excellent battery life and seem to be build really well. I dropped my old one countless times and it was still fine.
It's worth noting that Netbooks are only going to do exactly what they're named, net stuff, and pretty slowly. All the netbooks with the Atom processors are just too slow. You're going to want to throw it through a window trying to get one to cope with Windows Vista or 7.