We have CTC's running the old Interact software and it is a pain to use. The new Window's based software is better, but costly. The hardware is costly, and in my opinion, not all that good. You would probably be better off looking into the Red Lion G3 or the Maple Systems OITs. Automation Direct also a line that looks pretty good, although I have not used them, but others on this forum have and can give you more information on them.
Regards