The part number of the one I'm most commonly seeing on Ebay (and the most reasonably priced) is LQ150U1LH22 and it's from the Inspiron/Latitude laptops. I can't seem to find a manufacturer listed other than Dell.
After reading back though Wei's iTab build, I'm worried about his resulting jitter at 1600x1200 when he tried it with a MacBook Pro (which I happen to use). Is this a common theme with higher resolutions? I think that Chems used an XGA display...
I won the XGA screen I was bidding on for $25 shipped!

It seems pretty much perfect for this application, so I'm definitely happy. Here's the ebay link:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=190369652289 Let me know what you guys think!