There definitely is a lot of info to go through regarding Part D medicare coverage. I help my mother take care of her affairs, and have had to deal with the large volume of insurance literature. I used the following web site that really made it easier to understand:
http://www.medicare.gov/Default.asp It allows you to compare all the various plans out there. The one that seemed to work best allows you to list all of your current prescriptions. It than lists each company, cost for the plan and how much they cover for each script. It also lists a customer satisfaction rating. It allowed me to make a better decision for her insurance coverage.