Anyone have any comments on this:
http://www.jackedupcustoms.com/ click on the power supply picture in the middle and it takes you to their Power plant 620.
It costs $69.95 USD with $8.95 shipping so $78.90 total.
It is cheaper then the hobbico ones and seems better with 3 output.
You can connect 3 chargers at once to it. (I'm pretty sure that it is 20a to all of them. So if you hook up one charger, it can get 20 amps, but if you hook up 2 chargers, then you can only have 10 amps to each charger.)
Here are some more links to building a power supply:
http://www.rcbatteryclinic.com/ (then click on PC power supplys on the links on the left, at the bottom)
http://www.wikihow.com/Convert-a-Com...b-Power-Supply