Welcome to our boards, I am so sorry for your loss. I know you will find again that perfect corgi to complete your family.
I lost my cat 4 yrs ago to pancreatic cancer and I still think of her and miss her. Her antics still put a smile on my face when I think of them.
I dont know if you have been to
http://www.petfinder.com/ but I've seen a lot of rescue corgi's on that site.
Also
http://pwcca.org/