Brad, I echo Big Art and George. As a writer, I am a bit envious of your wonderful skill of passionate expression - you are very talented, no, make that gifted as a writer, but even more so as a human being.
I, too, weep with you, (just had to pause for a Kleenex, seriously) as it not only brought back memories of our Mysti and how her life taught us how to love, truly love, but it broke my heart for you, a fellow dog lover.
May God comfort you during the adjustment period.
As for getting another Puppy, that's probably excellent advice, but I just couldn't do it, I could never go through the pain of having another friend put to sleep, it's just too traumatic for me to think about it.
Blessings,
Will