Sorry that I was so late getting over there yesterday. The Prosperity expansion was very cool. It was great playing a couple games with you, Nick, and Billy though. I'm definitely interested in joining you guys again.
By the way, not that it was necessary last night, but I read about a 5-player variant for Dominion. Simply add two more stockpiles to the game and don't end the game until 4 stockpiles, rather than 3, have been depleted. Just a thought in case someone else is able to join.