Yeah, they are excellent power supplies. This is where they were bought:
http://www.allelectronics.com/cgi-bi...A,_5_35A_.html
Unfortunately they aren't sold anymore, otherwise I'd buy them up, mod them, and sell them on Ebay for a profit :). They come as two in an enclosure, and can do 60amps for the entire enclosure, for only $40!
jhautz, I didn't remember that you were the one who had bought the power supply from me. It's good to know it's working well for you still!
Right now I'm charging A123s using a modified Astroflight 109. It can charge 1-10s A123, and is selectable between A123 and Lipo with a small toggle switch. The mod is completely removable, and works very well. What's nice is that the AF 109 charger can do 170watts, and it costs only $120:
http://www2.towerhobbies.com/cgi-bin...&I=LXFWW2&P=ML
Astroflight also makes an A123 version, but it can only do A123, and I've heard of some issues with it choosing the proper cell count.
http://battlepack.com/chargers.asp (about 2/3 down)
I used to charge my A123 packs with the ICE, and I just did a manual CV phase. I charged the pack until the cells got to 3.6v/cell, and then manually decreased the charge current to maintain the 3.6v/cell overall voltage.