Have a look to the heavycoin algorithm with the the gpu miner from 1gh pool!! This is the best algo ever!!! I am not the expert but i think it is a modified cgminer.

Cards running very very cold with higher MH/sec, nearly soundless, halfed energy. Much better as x11.

I will mine only this algo during the summer.

Try it!!! --> http://hvc.1gh.com/