What is your offer?
I believe it is maxed out on RAM (2GB)
Fully working and can be useful if you have compatible software &/or hardware that utilize these machines (older audio/video products for example).
I'm not really sure what to ask so shoot me an offer.
Apple Power Macintosh G4 867 DP (MDD "Mirrored Drive Doors)
http://www.everymac.com/systems/apple/powermac_g4/specs/powermac_g4_867_dp_mdd.html