I am using an AMD W7000 Firepro and getting 200Kh/s mining in an altcoin pool, which automatically switches to the most profitable altcoin and autotrades them back to BTC.

For a GPU, the results are pretty good - Im getting 0.001 BTC per day (although Ive only run it for 1 day). Block erupters are on sale for £60, and give 330Mh/s - over 1000 times faster. So from past experience 0.001 * 1000 == 1 BTC, which sounds great.

Any ideas what im missing here?