Shelties are great dogs. Very active, heavy shedders and barkers. But Mickey is none of those. He's quiet, calm, patient...it varies. Anyways, I wrote up a little page on Mick's site if you wanna check it out. Color's included. Sheltie Info (it isn't finished. You can check out the links page to see more info too)

Double merle (double Merles are often blind, deaf or both although there will be a few that are just fine)
Actually I've read up on many sites that if two merles are bred they will very often be blind, deaf or even born without eyes. Breeding two merles is extremly irresponsible. I saw on up at Petfinder and I don't think it had eyes. It was so sad.

Ashely pretty much explained everything. lol Here is a pic of a sable sheltie