wow, I clicked on this board to ask if there was a velodrome in the area (I've heard rumors about a secretative one), and BLAMO!
I have to second Super Rookie's statement, while I lived in Asheville NC for a month, they have the mellowdrome (the turns aren't banked as hard as a typical velodrome, hence the nickname), which has in the middle a basketball court, a roller hockey rink, a park, and a sand pit volley ball set up. always tons of people there.
Just don't let them do to the velodrome what they did to the ice hockey rink here in frederick. Through some buracratic (sp?) nonsense the rink was made ten feet shorter than an NHL regulation rink. Reason? So that they could not do exhibition games. Don't let them do anything short of a regulation velodrome, otherwise it'll become a pile of scrap wood...