>>>>>Could use one to browse the net while gaming, IM convos, watch movies, etc etc.
Refurb dell or something from geeks or other refurb seller would probably get you the most bang for the lowest cost.
Or wait for the $500 laptop dujour to go on sale at your local B and M.
Or better yet for most of your requirements, get a second monitor for your desktop computer. A 19" LCD goes for about $250, and if your card does not support dual monitors out, well there's an excuse to upgrade your video card....