I have been looking around at good inverter/charger solutions and I like the looks of the Magnum Energy MSH-M 3000 watt inverter with load sharing. It syncs to whatever other AC source you have available and will parallel share the load at the transfer switch. In our case the Honda 2000 watt generator plus this inverter would theoretically give you 5000 watts. I can't quite think yet of when I would need 5000 watts in a truck camper but hey, why not? Maybe running the MIG welder, coffee maker, hair dryer and A/C at the same time?
Magnum seems to be a top tier company and they are local to us in Washington. The only slight problem is the MSH-M in the 3000 watt 12V input version is still a few months out from production.
http://www.magnumenergy.com/Literature/Manuals/Inverters/64-0058%20Rev%20A%20(MSH-M%20Series)_Web.pdf
