0.007 BTC per MH and day... this profit barely covers a 0.10 USD/kwh rate. I keep my rigs working because they heat my house nicely, but this is the only reason now.
How is your efficiency on your mining Rigs? I generally have 500 Watts per MH of hashing power, which translates to roughly $4/day in power at 11/kwh electricity rates.
I got 3.320 Mh/s @ 1250 watts or 376.50 watts / MH power. Using 4 x 7950s and 1 x 7970.