It doesn't need to be that portable as it'll mainly be used at home.
I mostly use my current laptop for browsing the internet, streaming videos and playing online poker.
I'd like it if the machine could play some games (obviously not the latest stuff, I hear the NC10 can run Diablo 2, which would be perfect).
As for price, I'd say no more than £800, though ideally I'd prefer to keep it under £400.
NC10 might be the way to go. I think my only other cheap option would be a Dell.
edit - not overly worried about a low spec laptop struggling to run Vista as I'll be downgrading to XP Home Edition.
Must have features...a decent keyboard (NC10 looks fine), I'd like to have a CD/DVD drive but it's not essential so long as it has plenty of USB ports (again, the NC10 looks fine).
Obviously it must be wireless (connecting to BT Homehub, up to 8mb with an average speed of 3.5-5mb), the Homehub is on the ground floor and I'll be on the second floor so it needs to be quite powerful. This is probably the most important feature. What's the NC10 like, wireless over distance?
I'm currently using a 5/6 year old HP Pavilion ze4700 (not a bad laptop but it's definitely showing its age). My main concern with netbooks is that I'll end up with a smaller version of what I already have (XP sp2, mobile AMD Athlon XP2800+, 958mb ram, Radeon IGP 320M, 40gb HDD).