Hi fayelc123!
No kidding on the attachment thing...Jack is my first dog, had him 2 years now, and he's like my little soulmate!
He is a medium-small Border Collie, and he is insured with M & S for about �10.50/month. We took the "no excess" option, it was only 50p more, and although we've fortunately never had to claim, I'd much rather have it than not. The call centre staff seem friendly and efficient, so i would hope they would deal with a claim in the same way.
In terms of cover, I think it's all been said. M & S are quite comprehensive, and seem to cover the basics.
I also have heard a heap of horror stories about E & L: cheap but certainly not cheerful :S
Good luck, and a big pet for your dog :)
Lisa x (and Jack too!)