He is soooo cute!! I really like the name Rowdy...
you said western names...what about

Wyatt (As in Wyatt Earp, great cowboy from the old west.)
Gaucho (Cowboy)
Hooey (A 'hooey' is part of a cowboy's rope)
Lasso
Can't think of anymore

I can't wait to see more pictures of him! How does the rest of the gang like him?