Communication with IBM mainframes

[Roger Centerstr|m]

We are two consultants in Sweden, that have a small problem.
We would like to design a UNIX system which contains communication
software that uses IBM SNA/LU6.2 to communicate with several IBM
mainframes over a X.25 network.
In an initial phase SNA/LU2 would be used.
The UNIX system would also be connected to a terminals or workstations
over a LAN to graphically display data from IBM mainframes.

Questions 

   1. Does anyone out there have such a system working ??
      For how long have you used it ?

   2. What components are you using ?
      - UNIX system ? 
      - hardware make
      - communication software on the UNIX system
      - communication software on the IBM mainframe except VTAM.
      - Software to pass data between LU 6.2 and the display.
      - Toolkit to develop software.
   
   3. If you use X-windows , do you have toolkits to develop a
      system like this.

   Roger Centerstr|m
   Akos Koranyi