I want to thank everyone for your thoughts and kind words.
Things haven't been easy around here...I still break down in tears when I do certain things, though it's much easier now that we took his crate out (at least I don't reach down to let him out, or look in there and not see his big eyes looking back). I also got his stuff together and put it away. I ordered a really nice memorial box for his ashes and some of his stuff (collar, UKC papers, etc). Sadly, his beloved treat ball won't fit in there, but Alyssa told me to just sit one on top - which gave me the idea to have it bronzed (like they have baby shoes bronzed), so I found a company that told me they'd do it.
I can't believe how much I miss him - I still feel his presence in my house. I still feel very guilty, though people tell me that will go away with time. I keep coming up with a million reasons why I shouldn't have put him down, and I keep second guessing my decision. I think my biggest fear is that one day I'll forget him.
Anyway, thank you, again - to everyone. I am very grateful to have this board.