WTBH, I'm so very sorry for the loss of your longtime friend. I'm a dog lover too, and I understand the particular hole it leaves in your heart when you lose a houndie pal. It is so hard...
There is a thread here
http://www.soberrecovery.com/forums/...-part-2-a.html that was very helpful to me when I was struggling w/the decision to put down our 16-year-old basset, Sam. Maybe you'll also find something there to help ease your pain a little.
My thoughts are with you and your kids.