I just got an old Dell Latitude C600 (P-III 750 512mb, 60GB, DVD-RW) -with a good battery for the total sum of $30! Yeah! - The only downside is that it had a european keyboard or something so a few keys are in different spots.

Here is what I did w/it.

• Put in cardbus wifi and usb 2.0 cards I had sitting around.
• Install XP to a 28 GB partition. (for starcraft, office and the occasional windows program) i user Virtual Sheep to auto mount my starcraft/broodwar iso's.
• Install Crunchbang Linux (a really nice, fast Ubuntu derivative) on the rest of the drive - had to fix sound as detailed here .. http://wiki.debian.org/snd-maestro3 , set the video up for 1024x768 as per here..http://www.ubuntugeek.com/fix-for-video-problem-on-the-dell-latitude-c600c500.html added the Debian menu as detailed here.. http://crunchbanglinux.org/forums/topic/19/auto-update-menu/

Not really sure what I am going to do w/it, but I will probably use is as a document display in conjunction w/synergy most of the time.