Join a little too late, difficulty is too high for the rig to earn itself back, use it for gaming.
Too late? How? I would be able to get 2.8MH/s with the 6 270s.
you're joking right? You can't even make much with 50Gh/s. With 2.8Mh/s you're estimated 0.000015BTC per MONTH. Unless of course you're using it to mine other coins it might work.