(I hope this is in the right section - my first post!)
Hi! I'm brand new here, and I have at least one hundred questions on various things

but I'll start with the most basic.
I currently have three wonderful non-pedigree dogs - a typical crossbreed (most definitely part JRT, with more than a dash of Whippet and certainly something else), a rescue Border Collie cross, and a Working Sheepdog. They all do flyball very successfully, and my little Xbreed does very well at agility too (baby WSD boy is finally beginning to follow in her footsteps, at 3 1/2!).
I would like to add to my gang some time around late 2011/2012. Having only had a ragtag bunch up until now, next time I am going to take the plunge and get a pedigree puppy, providing everything goes to plan. Right now, the most likely suspect is an Australian Shepherd, but I'm still open to ideas!

My main concern right now is that, having never contacted a breeder before, I'm not sure where to start! For owners, how did you contact the breeder of your dog? What did you ask or introduce at the time, and what made you choose that breeder? And for breeders, how do you best prefer to be contacted? What do you want to know in that initial contact (and what should I save for later)?!