You're going fine!
Look at http://www.alloscomp.com/bitcoin/calculator and http://dustcoin.com/mining
At 570 mh/s you should get about 0.03 BTC (0.0319 to be exact) per day, so $4.40.
Now that you've got 605 mh/s, you should get about $4.68 per day, so 0.0339 BTC.
Please note that the dollar figures I have are based on the exchange rate at the time of writing, and that the amount mined will change as the difficulty fluctuates/goes higher. Also, remember that those calculators are estimates.
Look at http://www.alloscomp.com/bitcoin/calculator and http://dustcoin.com/mining
At 570 mh/s you should get about 0.03 BTC (0.0319 to be exact) per day, so $4.40.
Now that you've got 605 mh/s, you should get about $4.68 per day, so 0.0339 BTC.
Please note that the dollar figures I have are based on the exchange rate at the time of writing, and that the amount mined will change as the difficulty fluctuates/goes higher. Also, remember that those calculators are estimates.