Thanks for all your support guys.
I'm feeling a little better. It's the little things that still catch me, like looking behind my desk chair for Fred before rolling it back, or not having him licking the water off of my feet when I get out of the shower (I think I'll actually be OK with that one once some time has passed).
He loved, loved, loved the beach, and I took him often. He also loved playing with my co-workers dogs, and pissing in their yard. That's where he's burried, as I have no grass. So all in all he had a great, if short 6 years on this planet.