Hey if you haven't checked out that Trupanion link yet....that's the company I've got my bully insured with. I found that they seemed to have the best NO LIMIT per incident, per dog, per year coverage at 90% of your vet bill versus some companies only covering 75%-80% with limits to how much ( e.g $5000 per incident and even per year?!), and they do cover common conditions known to most dogs...just not if they already had the condition x number of months prior to your claim. They don't cover vet exam fees, or any normal trip kind of stuff like vaccinations,flea or heartworm treatments,etc.etc... but they cover diagnostic testing, medication, hospitalization, surgeries, etc...for injuries/conditions caused by accidents OR sickness and illness including congenital and hereditary conditions known to the breed. You can set the deductible to whatever you're comfortable with paying and the site will automatically adjust the monthly payments so you can see the difference. Also, the monthly rates are cheaper, the younger the dog that you're insuring.
Anyways all that info is on the website...just thought I'd share because it's something I had recently looked into and am paying for. But haven't had to use yet ( knock on wood ). I'm sure there are other great companies with decent coverage. It's worth thinking about....in the end it, peace of mind was also a big factor in deciding for me. Just my 0.02 cents. :D