I'm definately not a professional shop. I just play around with things from time to time, but I have the Pro-tools 105 HD bender.
http://www.pro-tools.com/105.htm I have the manual version, but they have an air-over-hydraulic kit for it. It seems to be a popular brand/version with some of the professional shops that I've seen on one of the fabrication forums that I check out on a regular basis. The other thing that you definately need is the 2020 Software Solutions' Bend-Tech Pro or SE
http://www.2020softwaresolutions.com/ . It is definately a time saver when designing and bending.