Fantastic thread - as a relative "noob" to Head-Fi, I can't throw out an educated suggestion, but I'm following them all with great interest. Will you be at the National meet in San Jose? Seems like about the best place to find out the answer:
"One Amp to rule them all, One Amp to find them,
One Amp to bring them all and in the darkness bind them
In the Land of Mordor where the Shadows lie."