If you need a lot of wire buy some from here. Dirt cheap.

http://www.monoprice.com/products/subdepartment.asp?c_id=102&cp_id=10239

If you don't need a lot go to your local hardware store or a big box store like walmart and get some 12 awg from there. It won't cost much.

I’m armed and I’m drinking. You don’t want to listen to advice from me, amigo.

-Max Payne