I've been away at a trade show and after I had done my 'work' stuff I went wandering. One thing I came across was this pipe bender. The head is not particularly special, the clever bit is holding the end of the pipe in a rotatable chuck. This means that the length and angle of the pipe can be accurately controlled, in this case via a DRO system. Not something you will need every day but a good idea for repetitive or complicated bending jobs.
http://www.gelber-bieger.com/Hand-Tube-Bender-HRB-12-Plus_4_SILVERLINE.html
