This is a more up to date CNC with a hard drive and a BMDC board as opposed to the older versions with a 286/386 and the FMDC.
DC servo motors, Motion science drives, SVGA display, strictly a G & M code machine.
There is a YAHOO group dedicated to these machines as well.
Check the ways for wear, the ball screws for lost motion, the head for noise, behind the Y axis cover for rust and do a slow feed rate and see how smooth it feeds.
Check on EBAY for completed sales and you will get an idea of the going price on these.
George
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)