Used Sony Vaio pcg-frv26. The battery doesn't hold a charge for more than 10 minutes anymore so it will need a new one unless you stay plugged in. They sell for $65 online. I bought a new laptop so I'm just going to sell this one.
specs:
http://www.sonystyle.com/webapp/wcs/...uctId=11039129
$200 obo
Would be great (cheap) for someone to keep in the car for tuning.