Probably the most talked about (and dreaded) feature of the Part D plans is the coverage gap, or so-called "donut hole." After you've met a plan's annual deductible, Part D will pay for about three-quarters of the costs of your medications, but only to the point where the donut hole begins. For 2010, the donut hole begins at $2,830, which means that once you and the insurance company have spent $2,830, your insurance coverage will stop and you will have to pay the full cost of your prescription drugs. Some plans will cover generic drugs in the donut hole, but in 2010, almost no plans will cover the expensive brand-name drugs. Read on for the good news about the Part D catastrophic benefit...