netbook /long battery life with HDMI ports

[micro90]

im looking for my second laptop, yeah i know i can buy a cheap laptop with the same price as a netbook but i also travel alot, so i need something lightweight.
something that meet these requirements

5+ hrs battery life
HDMI and VGA ports
If possible below 250 pound
any specs other than being lightweight, im not picky about it



Thanks for any help in advance