I keep going back thinking about when I replaced the batteries, and looking at the picture I took, and really don't think I missed anythng.
http://i65.tinypic.com/141jcev.jpgMessy, I know. Some of it is temporary until I find more room for a proper bus bar etc.
The two large cables coming up between the batts are #4 direct to the converter for charging. The two smaller ones going off to the right are a temporary 350 watt inverter. The two large cables going up top are the original that go to chassis, 12v distribution, alternator isolated charging, etc. Cat5 provides power and connection from shunt to volt/ammeter.
Thank you all for your input this far. I will hopefully know more through tonight and tomorrow.