You are 100% correct. A USB 3 card on my Mac Pro is an obvious solution. That said, I think once I get the new iMac and enjoy the increased performance and simplicity of design that a 2nd will not be far behind it.
I very much appreciate your input/advise - sometimes the obvious gets lost in the analysis paralysis.
its all about creating a place you can be yourself, and in an instant, allowing me to capture you as art...