Anyone know the most economical battery solution for the marshall monitor? I'm think of buying one but can't decide on a battery mount.

You could have them modify it to use your camcorder batteries, otherwise
globalmediapro seems to consistently have the lowest prices on small liIon batts.

thanks jaron... would you know where I can get the modification for my camera batteries?

I think if you call Marshall, they can give you a part number for it, otherwise Nebtek makes adapters.