Welcome, and hope you step into pig keeping.
As others have said, we would recommend that you start with some weaners (8 week old piglets that have just come off mum - so have been "weaned"), before moving onto to breeding at a later stage.
You will want at least two (it is illegal under the welfare of farmed animals regulations 2007 to keep pigs on their own, and if you are raising them for meat, then you come under this regulation) - pigs are herd animals and do not bond to humans as dogs do, so whilst they will become very friendly, they need the company of their own kind.
Breed wise, go for what you like the look of - every breed society and breeder will tell you that their breed is the best for pork, bacon, ham, sausages, is easy to look after, good mothers, nice temperament. and does the washing up for you. Breeders are a passionate and enthusiastic lot! Whilst some breeds are more specialist, you can make good food from any breed, so don't worry about choosing. Now to contradict what I have just said

I would agree with HH that we generally recomend starting with a lop eared breed (ears down) such as oldspot, saddleback, large black etc. rather than prick-eared such as tamworth, middlewhite, berkshire. Just for you first pigs, after that go for what you like. 16 tamworth breeders are now fuming as they read this, and I fully expect several posts telling you I am wrong ! As I say, go for what you like the look of !
A good course will give you lots of info that you can't get from books (seeing really does help), but plenty do start just with a book. We do both and whether you come on a course or choose a book from us or others, please do get some knowledge before you start, pigs are easy to keep, but you do need the basic knowledge.
Have fun and good luck