We've had both Berkshires and Saddlebacks and I have to say I'm a Saddleback fan now - both are good natured, but the Saddlebacks win for me on personality and the end product - tasty pork!
I have some weaners available at the moment - we're in West Berkshire, so don't know if that's too far for you. If not, I'd be happy for you to come and visit, see the breed and ask as many questions as you'd like about keeping pigs.
Shirley