InsureMyTrip.com is a useful site that enables you to compare similar policies of different companies. It's just a comparison tool and doesn't actually sell any insurance. You can then link directly to the company and purchase the plan you select. We've used it a number of times. Now we just go with Travel Insured as a low-cost plan for most our international travel. But we've also used TravelGuard. It just depends on how much you want to cover. That's why the comparison site is so helpful.

Fortunately, we've never had to file a claim, so can't comment on what that's like with any of the companies we've dealt with.