Sprintz, Check out the JORBA board, the MTBNJ Calendar and Advocacy & Access forums for TM dates. If there is a park that you frequent, like JH or WayWay, contact the appropriate JORBA chapter or Town Cycles (JH) or Black Bear Cycling (WayWay) to get on their mailing lists for TM and group ride dates.
As far as the bike purchase previously referenced by Ben. Shop at your LBS! Some of these shops are GREAT by helping keep this board afloat, and others are very willing to share their knowledge and experiences. If you didn't buy a bike yet or need accessories, stop in to Bicycle Source in Pompton Plains (not to be confused with Bicycle Source on Line or the Bicycle Source E-Bay store
). Bill is a real good guy, and tell him the guys at MTBNJ sent you over.