Go to ebay and search for Shopbot, they have this currently;
Quote "Shopbot PRS Standard 96"x48" CNC Router. This unit is about 2 years old and in very good shape. Comes with 4G controller, Shopbot control software, PartWorks disk, Porter Cable 7518 router with 1/2" & 1/4" collet and several 1/2" &1/4" upcut,downcut ,compression bits and ball nose bits. $7,500 buy it now. "
It is in Morrisonville, New York and local pick-up only.
Probably a $15,000+ system with the stuff he lists.
Unless you have a background in machining I would recommend you look at Shopbot or Multicam turn key systems. Lurk in the shopbot forum at;
http://www.talkshopbot.com/forum/discus.cgi
for a while to get the feel of CNC in general.
Also, there is a CNC forum at cnczone.com that cover a lot of ground, but is slanted to building your own or hot rodding your CNC.
Steve.
Disclaimer: I don't have a shopbot or multicam, but covet them. I bought an "independent" brand and had one heck of an unsupported learning curve.