Bill,
I ordered the 600mw Tx from you a few hours ago. Quit reading this and go ship it.
I also ordered a 2s 560mah LiPo and a 5 volt regulator made by Kokam. The regulator is on a board with all support components. It is 2 amps continuous. It also has 3 LEDs to indicate battery charge. Red, yellow, green. I figure the camera at about 200ma and the Tx about 460ma. 660 total. I should get a half hour or more.
There are 3 wires coming out of the regulator board. Red, black, white. I haven't figured out what the white is for. This is made to power RC receivers and servos.
Happy Holidays!