Well after a great one on two Introducton to Regulator science and service hosted by a very knowledgable and respected local regulator technician, Kevin, and attended by Judy and I, the decision has been made.
The winner is Apeks DS4 first stage and we'll couple that with 2 ATX50s one for our primary, the other for our secondary.
Taking into consideration our short, and mid term diving goals, and leaving ourselves open for all possibilites for the longer term, we decided that it would be best if pick the one setup that appers to afford the best possible solution for all of our curent plans, future potetial plans, and would have the longevity to take us where we want to go and beyond.
I'm sure that there are other rigs out there that could do this as well, but after seeing the units, their components and taking into account service warantees, and expected life span, we felt the Apeks showed themselves, for our purposes, to be best of breed, and the best long term financial investment.
Thanks to all for your siggestions, and help, and a HUGE THANKS to Kevin for taiking the time to educate these two rookies on the inner workings of these units, and for giving us a good foundation of technical knowledge to build upon.
Cheers!