definitely Louise - whether you just do pet obedience or go for the competition , I feel that either is beneficial for both you and your dog. Good socialisation, your pup will meet all types of dogs and people. But like everything in life - there are good and bad ones. Have a look at this site Louise, the Association of Pet Dog Trainers, click on Members Index and have a look for a club in your area:
http://www.apdt.co.uk and also your vet may have a list of clubs in your area. Go along a watch first, you can usually get a feel for the place, if the owners and dogs are happy, if the training methods use suit you, and also whether the club teaches to competition level, some are just for pet training and it depends on what you are looking for. You'll get hooked I warn you! enjoy it! Julie:)