Need some help with a kit

[Konnan101]

I was looking on ampslab.com trying to find a kit that suited me

http://www.ampslab.com/products.htm

these kits look pretty promising, but i was curious as to which of the three (mosfet, power ic's, or bipolar) is going to sound the best. I like how the bipolar amps look because of their included heatsinks.

i also have a newbie question. What do you do to these amps to creat inputs and outputs. i Dont see them anywhere on the amp. Also when creating the outputs how do you make it able to go to two speakers....do you have to buy two kits and do an output for each?
sorry if thats a stupid question..

and lastely anyone know a good place to buy prebuilt cases for amps.

thnx