Try the club listings at some of the recumbent web sights. There are a lot of bent riders out there... once we all get together we shall rule the world.... ummm never mind, I must have been sniffing the chain cleaner fumes again.
Most of the clubs around here welcome bents, but every club has there SNOBs (Snobs on Nice Bikes) I just dont bother with them.
If you cant find a club, you can always start your own
"When the spirits are low, when the day appears dark, when work becomes monotonous, when hope hardly seems worth having, just mount a bicycle and go out for a spin down the road, without thought on anything but the ride you are taking." - Arthur Conan Doyle