How about as massforge render farm nodes?
Or for comptranslation work?
ETA, 08:20 CST Mon 17 Nov 2008 - As it happens, a year and ten months after Kaos I was first built, masaga is running comptranslation stuff right now on Fingolfin! So, this could work out.
Specs of Kaos I
AMD Athlon XP 2600+ Barton Core
Specs of Kaos II
Dual core AMD Athlon XP2
Edit, 08:25 CST Mon 17 Nov 2008 - Not very impressive, I know. Check out Kaos III, though:
Specs of Kaos III
Asus Z7S WS mainboard
Dual duad-core Intel Xeon E5410
4 GB FB DDR2 RAM
Radeon HD4850 Video card
Seagate 750GB Hard drive
650W Power Supply
Full Tower case
Transcend USB 2.0 multi-card reader (SD, CF, MemoryStick, etc.)
802.11g wireless card