Yeah, arts orgs are really mostly in need of money, and nearly everyone on an arts board is a big donor or has access to big donors. There are a few positions open on these boards, however, that can be accessible to young talent even without money... if you really want to, get involved. THere are typically plenty of opportunities to give in a smaller way and to help organize. I am chairing (poorly) a young pro's event at the biggest-funded art museum in town here. It's not a board position but the sort of highly visible role that could eventually lead that way. It will be significantly harder to land a big board position in a town like NYC. Good luck.