Welcome to the Denver area!! All the above ideas sound great.. I am not one to participate in group activities..as you can tell by my name so I do a lot on my own or with DH. There are lots of groups out here though which may help you out with what you are looking for. I would offer to ride with you but I have not been on my bike since the end of June due to back issues. I may try to get some riding in pretty soon to see it feels.