Essentially I view this as being able to purchase Ethereum at my fixed rate price of electricity.

I only have 2 cards operating, both AMD. 6800 and 5700 (non XTs). I achieve a hash rate of around 114MH/s.

I use Rave OS as the mining software which I can remote into to take control and issue commands.

Below is a spreadsheet that I created when configuring the cards and working out the best efficiency to have them set to.

I use Team Red Miner for the mining software and I mine to the Crazypool community pool.