lipo charging Q's

[MetalMan]

Just FYI, you don't need to spend nearly that much on a power supply. You can get one from Hobby People that's 20amps for $60.
http://www.hobbypeople.net/gallery/158301.asp

Or you can go a slightly DIY route and get two 30amp power supplies (60amps total) for $40. I went this route, and sold one of the power supplies, since 30amps is more than enough.