My Lady is in her seventh year with diabetes. It is a scary diagnosis, but it is a very treatable disease. Before you know it, giving insulin shots will be like second nature. I even learned to test Lady's blood sugar myself with a human meter.
This is a wonderful resource for people who have diabetic pets:
http://www.petdiabetes.org/contents.htm
This forum is fabulous! I don't think I would have made it through that first year without it. There is so much information and support there. I really recommend joining it:
http://p092.ezboard.com/Canine-Diabe...caninediabetes
Please feel free to pm me if you have any questions or just need a listening ear.