Need Advice on Netbook

[hurla]

Hi all,

I'm looking for advice on which netbook would suit my needs.

Basically, I'm looking for something I can carry in my bag while I cycle to work. I'm a teacher, so here are the only functions I need in the netbook:
OS Windows 7
MS Word+Excel+Powerpoint
PDF reader
Language Bar
able to play movies
Store around150GB files
VGA port, USBx2 ports
Wifi capable

I'm looking for something which is sturdy enough to withstand vibrations from cycling, without being too expensive. The functions I need are quite basic so I could even buy something and free up space and memory by getting rid of unwanted programs.

Any suggestions?