AppleCare is an extended warranty, not an insurance plan. So it will only cover defects and stuff, I believe. Not accidental damage, like an insurance plan would.
For my Android phone, Verizon charges $7 per month for insurance. Then to make a claim, I think you pay like $70 or $90 deductible, I don't remember exactly.
I've heard good things about SquareTrade.com for insurance, and the deal looks pretty good. Last time I checked, it was $99 for 2 years on an iPhone, and covers accidental damage and everything. I think the deductible was less, maybe $50 or something? I don't remember the details, but I know it sounded like a much better deal.