The guppy league are starting a guppy show tour of sorts, their will be several show though out the year, with the final at Nottingham in Oct 09
In discussion is Bristol, Corby, Redditch. However these are not finalised
The guppy's will be pointed at show and then colleated and added up fo the final resualts, how ever this will be open to the general public as well so u can see how good your guppies are!
As i get more info on this I'll update.
As for in devon look on PFK site for local clubs, bristol or plymouth are the one's i know off the top of my head.
Or join the BLA to find out more