Hi 'Squirtle',
I realise it might be a little late but as I found this I'm sure other people will too so I thought I'd add my thoughts.
I won't repeat what the others have said but I do want to say that it's always best to see what you're not covered for (by reading the policy document before buying). I, personally, see pet insurance as part of the ongoing costs of a pet.
Another thing; don't buy just on price. Looking for the cheapest deal is a false economy because cheaper policies often cover less and have more exclusions. More importantly they generally don't allow for ongoing conditions - so after 12 months the cover stops.
This site allows you to sort and compare some insurance policies without having to enter your details to get a quote
http://www.pet-insurance-comparison.net/
I hope that helps