Check out Wachusett. I think u can buy a night pass from 3 to 10. There aren't very many trails, but the ones that they do have are great. Lots of little side hits, rollers, and turns. The only thing is that it can get pretty crowded sometimes. If u can't go on a weekday, u should go later because around 7 to 8 everyone starts leaving. Check out this thread to get some discount tickets.
http://www.snowboardingforum.com/reg...t-tickets.html