Agrees with Alison on the comfort thing. You have to be able to play the bodhran comfortably.By the way I know that Chomhaltas have branches all over the world...
I can't do the blue clicky thing but I am going to have a go... click here
Keep everything crossed. Anyway, I think they have lists of branches - if you contact them you may be able to join, or find out about classes the local branches hold near you. They have regular sessions, and usually have regular lessons - plus it is usually a good social thing too.
have fun!
Ella