I agree MDD. No breed is 'prone to barking'.
Peta, you're probly used to excitible working Kelpies. My grandpas 4 working Kelpies are tied up when they arn't being used and will bark all day until they are taken for a run on the motorbike or taken for work.
If they are used during the day, they wont make a peep once they get home.
Oh, except for when its dinner time.
Any breed would do that though.