Soo, I went through the WHOLE mountain biking thread and was almost literally drooling over the pictures. BUT, I have to ask, other than the typical board on blocks jumps and rides around town and the local park on a cheap-o walmart small wheel, I haven't done much pedal type riding. So, how do I get started in the sport? I *think* that I've got some great terrain right here on the property but I don't really know enough about the sport...