Not exactly cheap but MB are getting these in quite soon I'm told. Damn nice looking and powerful enough to charge my 6S cells at fast rates. Might have to save up for this tho.
http://www.elangears.com/?page_id=78...preview_id=789
I'm just playing with the Hex at the moment - learning how to fly it, so I'm not desperate for a new mega charger but this one is the most appealing I've seen.
The usual 50w chargers just don't cut it - i think you need 80w or more per pack to charge at a decent rate.