I purchased this laptop:
http://www.ebay.com/itm/290608305269
... to do Bitcoin 'gitian' builds. It's a perfectly good laptop, runs nicely, but I'm re-selling it because its Core Duo CPU can't do 64-bit builds.
Specs are:
1.83 Mhz Core Duo processor
120GB memory
2G disk
Wifi
Running Ubuntu 11.04, includes laptop, battery and power supply.
Asking 50 BTC, I'll pay shipping anywhere in the US; if I don't get any takers here, I'll re-auction it on Ebay on Friday, Nov 11.