pointers needed: X and Interactive SysV

[Bill Gribble]

My company installed a Zeos 486 box to run Interactive SysV.  Since the 
  Interactive X product is priced at ~$800, we opted not to purchase it.

If one were to want to set up a do-it-yourself X on a 486 unix box, what's
  needed and what's available free, by FTP or otherwise?  We would like to
  get X up and are willing to do some reasonably serious programming.  Oh-
  we are using a Speedstar SVGA card.

Please tell me I don't have to try to get *another* thousand bucks
  to get X running...


Any help is appreciated.

Bill Gribble
bgribble at jarthur.claremont.edu