Thank you all for your thoughts and prayers. While it was difficult to do it was for the best. Since he was the last kitty the house seems empty (although I don't know why I feel that way with 3 of 4 kids still home!). One day we may get another one, but not in the near future. Between all of the work, travel, school and extra-curricular activities its really wouldn't be fair to the kitty as it would be alone too much.
Fern: Thank you for posting that lovely poem. I've printed it out to keep.