Sorry to barge in, I'm just wondering with 1.2gh/s - 1.6 gh/s how you'd get 21 - 28 bitcoins per day?

I'm running one overclocked 5870 at approx 420mhash/sec and generate just less that 1btc per day on slushes pool.

Would adding an extra 2 or 3 cards really increase turnover by over 20x??

Am I doing something wrong? The quoted figure seems *really* high to me.

Just curious - thanks