sad news thrills... i feel for ya man.
just after moving into my new place i got a puppy. he's 1 and a half now and i love this little guys so much... he's actually sitting beside me as i type this. i dont know what i'd do if i lost him, and its only been a year and a half. we're real close.
to answer your question, yes, i think you should see him before he's buried. pet him, cry, feel his fur... it'll be like he's sleeping, and you can get some closure.
i think thats what i'd do.