Have a look at these two pages (there are many more!)

https://bitcointalk.org/index.php?topic=134179.0
http://www.coinwarz.com/cryptocurrency

Anything that says "Scrypt" are best for the AMD cards.  Then find a cgminer config that is best suited for your card.

This one I found useful https://coinaxis.com/index.php/entry/how-to-configure-cgminer-for-litecoin-bitcoin-windows-8