Middlecoin would be the easiest, then we could just pay in BTC (and you can always go buy whatever alt-coin you fancy). We've got the monster rig from Group #4 to do some experimentation until the Gridseed arrive. I wouldn't be adverse to having one or two of the rigs pointed to Doge. It's open to owner input, we're a small enough group where we can come to a consensus.
Are you using cgminer? I know there are a few others but, CGWatcher has coinchoose API integrated and most of the coins added so that you can use it to define your own switching parameters. You just have to write the bat files to kill and start each coin when the triggers are hit for the swap.
This way, you arent depending on a coin pool to make your decision, you can choose the best pools to mine on for each coin and set auto payouts to the exchange for autosell.
Middlecoin would be the easy way out... a CGWatcher style solution would require a bit more work to monitor and make sure coins are being sold, but maximizes profit.
