I have heard of people curing diabetes and high blood pressure with a raw food diet. I am not raw myself (though I have played with recipes, and incorporated some things like green smoothies into my daily life), but I have met several long-term raw foodists who have overcome illnesses including diabetes, allergies, eczema, and even one who beat cancer - and all are very healthy now and off of all medications. One book I would highly suggest is 'Eat to Live' by Joel Fuhrman - it is primarily raw food, and addresses the issues of diabetes and high blood pressure. He also has articles about this and many other topics on his website, and he is available for consultations if you want him to create a plan for you to get off your medications. (but I wouldn't just go cold turkey on your medications - your body will need time to adjust and gradually wean yourself off of them). check out these links:

http://www.drfuhrman.com/default.aspx (click on the 'reverse disease' link for info on diabetes)

http://www.rawfamily.com/

http://creativehealthinstitute.com/ - the creative health institute has a fairly inexpensive two-week residential program that teaches you all aspects of how to live and eat raw. I know people who have done this program and had great experiences with it.

good luck!