Im an independent music producer, and im looking into getting a pair of the sennheiser hd650's. I've heard good things, but have also become confused on some of the more technical aspects of getting the headphones to reach there maximum potential. What do you guys suggest i buy with the headphones so i can get the most out of them? Keep in mind, im using these headphones to produce music. Cords, pre-amps, sound cards, etc... Also, im not much of an expert when it comes to these things so keep the technical jargon to a minimum.. or at least explain yourself =D.

Thanks, -Jared-