This is the power supply I use. I bought it from MetalMan almost a year ago for $25 I think. He said he bought 2 of them for a deal and didnt need the 2nd one. Dont know where he got it, but it seems to be very solid. No major mods were needed to make it work.
http://i66.photobucket.com/albums/h2...z/CIMG1892.jpg
I just soldered some 4mm gold plugs to the output and can just plug in to them of use aligator clips on them.
http://i66.photobucket.com/albums/h2...z/CIMG1893.jpg
Here is the specs and model number if anyone wants to hunt one down.
http://i66.photobucket.com/albums/h2...z/CIMG1897.jpg