Thanks for your advice guys, we are still looking in that area but are definitely open to other alternatives. I still want to be close to the vicinity, any suggestions?

2C here are some of my pneumatic PLC machines.

This one is for walking on Treadclimbers in a general machine life test (about 1000 hours). My old boss and I both worked on this one so I cant take all the credit.

http://www.youtube.com/watch?v=3307D8Xe8jY

And these two are component test for a new seat mechanism we are incorporating into the new product line. The drive train on the exercise bike is also being tested @ 375 Watts and 90 rpm by an electric motor.

http://www.youtube.com/watch?v=jmlPmPJTpCM

http://www.youtube.com/watch?v=1xlgGFciDzg