Bumblebear
go to the GOS website members section and you will find a list of breeders in the Anglia area any of which will be glad to talk to you and may let you visit them.
There are lots of courses now as people have jumped on the bandwagon, the good ones come by recommendation eg Oaklands, HH, Liz Shankland, these are all experienced pig people who know their stuff. One thing to ask of somebody running a course is to ask how long they've been keeping pigs, if its only a couple of years, look abit further they're still learning, i've been keeping pigs now for 8yrs and i'm still learning. I started with a day at Pig Parardise and it was a good introduction but not compared to actually going to a breeder and talking to them.
HTh
mandy