KMan,
No Xpert here; anecdotally, I have friends that have 50G systems or 2 G systems and, I personally have Monster surge/cleanerUpper on my Mtn and FLA "systems", though neither are more than above average in "grade".
I can hardly tell the diff., as the 50G guys love to run any media at 120 dBs to "show off the sound", which is really SPL. Pic-wise, it is all over the map base upon feed, camera, process, etc., as you know.
You might peruse the site below, but like economists or, car fans, for every 100 posters there are about 98 differing opins.
Helluva sys you have assembled. Enjoy and don't sweat too much over the $50/ft "cable run" guys,imo.
BR,mD
http://www.avsforum.com/