Based on what you've said (and assuming you have no equipment), I think you probably want to do something like this guy https://www.reddit.com/r/ethtrader/comments/3gn1v0/cost_to_mine_1_ether/cu01frx… (View Post)
This comment https://forum.ethereum.org/discussion/comment/8978/#Comment_8978 indicates that 2 r9 295 gets 102 MH/s. So just one of those will probably get you around 50 MH/s, however just one of tho… (View Post)
Our first meeting will be in a little over two weeks. Anyone who is interested in discussing Ethereum is welcome! http://ethereumphilly.ticketleap.com/ethereum-meetup/ (View Post)