I'd strongly recommend visiting some uni's. You can't really get too much of a picture of what a uni is like if you don't visit.
If I were you I'd take a trip and arrange to visit the ones which interest you, even if you can't make open-day's you can phone or email them and they will arrange for someone to show you around and talk to you about the course. They want as many people to enroll as possible so it's in their interests to treat you well.