Yesterday I ran into the crew of the Rozalia Project, a non-profit that uses ROVs to clean up marine debris, at the marina in Berkeley. It was somewhat of an unexpected encounter, so I wasn't as prepared as I wished I would have been.
I did, however, get a chance to snap a few photos of the Video Ray they are using, complete with manipulator and blueview scanner. I also got the chance to fly their ROV, which was a lot of fun. It gave me a few ideas on how to improve the UI and experience for OpenROV, too.
The Video Ray is really slick - I want one! The smart tether, blueview sonar, and manipulator are all really useful. All told, it's about $80k in gear (or about 100x more than the OpenROV kit).