Why are you guys mining with GPU ? Seriously..... I can pull out around 600 mH/s from my single Radeon HD7950, but that is no way near to pay for the cost of electricity.
GPUs are definitely lame to mine sha-based coins, but it's still very competitive for scrypt-based coins. 
And CPUs are still good (at least until we reach the first threshold - very soon) for quark-based coins.