I plan on starting to set up my video camera on my deck and just let it roll before long.
Here's a shot of our two houses (theirs circled in red, mine in blue)
http://img.photobucket.com/albums/v289/TimTaylor75/house/Yard.jpg
I'm definitely not the closest in proximity, but the house closest to them (below them in that picture) also have dogs, ones that you never hear. My bedroom is on the backside of my house, so the sound comes right in and pretty much wakes me up everyday. That and our patio doors are always open which open into our living room, where we can't even really sit and watch tv in peace because of the constant noise.
The funny thing is that literally across the street from me is a dog trainer/doggie daycare that at any given time has between 10-30 dogs...that you NEVER hear because she corrects them when they start barking.