I bought a copy of the "The USDA Complete Guide to Home Canning" off Amazon, however you can find an online version at this site;
http://www.foodsaving.com/canning_guide/
The pressure cooker I bought was expensive, it was over $300CAD, the brand name is "All-American" and I read many excellent reviews on it. With some minor care this is something your great grandkids will be using

I have so far done Chicken, Ham, Beef, Pork, Clams and Quahogs, all with excellent results.
* I should add, I follow the instructions to a tee! Botulism poisoning is nothing you want to experience from what I read! If you wonder about the Citric Acid part of the instructions, this is what I use as it adds no taste, if you substitute lemon juice (which the instructions allow) I I found a bit of a lemon taste came through. Citric acid can be found in most grocery stores or wine making stores.