My one test was a dismal failure at about 26600 Mh but I was testing on cracking phpBB3 hashes when I got that speed, so I will see for sure in a day or two.
Most likely this will be a bad investment though. I can face that but I am going to look for ways to "hedge" a potential loss.
Well, according to the Bitcoinx mining profitability calculator, that hashrate would gross $4403.21/month. Granted, you did spend a lot for your rig, but I wouldn't call that a dismal failure!