If you want to make something really cheap here you go..
http://www.lowes.com/lowes/lkn?actio...=cr&lpage=none

Just have to recitfy it and build some regulation..



That looks way too small and cheap to be 10A, I think 1.0A is a lot more
likely, looks like a doorbell transformer.

You don't want a linear power supply for that kinda power, it'll be a boat
anchor.