Thanks to you both for the advice. A friend of mine owns a Bryston 9BSST and you are right about brute force. He uses it to drive his Magnepan 3.7's and the sound is amazing.
For my budget I think I'd probably be more inclined to go the Wyred4Sound route. The ST-500 seems like it might fit the bill nicely so thanks for that Audiogon link.