Hey, I'm wondering how profitable 2 r9 290's watercooled (100% load for 1 hour and they don't hit 40 degree) is over 1 month of mining? I've read a few threads as far as how to get into mining and how to set things up but can't seem to figure this one out. Also, my utilities are included in my rent so there is no cost there. I see that 1 bitcoin is worth 377.43 USD today. How long would it take my cards to make 1 coin?

Thanks in advance for the help!