Pretty basic requirements:
It needs to have an S-video out socket as I like to download and watch movies, needs half decent processing power to cope with multiple applications - nothing major though, I just tend to multi-task and have loads open at once.
Memory - not an issue.
Needs to have wi-fi and bluetooth also.
One thing which would be nice, but I don't think it'll be in budget, is if it would dock with my docking Dell docking station from my old Dell D600, as I have the station, keyboard, and LCD screen.
Looking around £300.