Update: Today is a good day, we've successfully gotten all seven rigs up and running!  Tomorrow we will be migrating from btcmine.com to other pools (mining simultaneously on more than one pool with each card.)  I will also be continuing work on a cooling system to allow for better overclocking.

Once again, thanks to everyone for your support and advice!  We rode out the bumps and have entered production mode!  Next on the agenda: dividends!