I know a few married couples at Edinburgh. Like previous posters mentioned, because you're married, he can get a visa too.
My only word of warning, and this comes from watching my best friend and her husband get a divorce last year, is that make sure he knows what he is in for. You are both moving to a new country, but you will have the added benefit of entire community of vet students that are in a similar situation. When he meets them, at first they will all be "your" friends. This doesn't mean they wont be his friends eventually too, but when you don't have a job or classes right away, it is hard to go out and make new friends in a new country. Plus, vet school takes up soooo much more of your time than undergrad. So this means that he is now in a new country and has to reduce the amount of time he normally spends with you. I just mention these things, because it was not something my friend's hubby was expecting and it was definitely a huge part of the issues they had. Obviously it was not the only issue, but it can create strife.
Unfortunately my husband could not move over here with me. Although we are making it work, and some times I think it is for the best that he is not here (like before exams when I spend 16 hours a day studying), I would take him being here over the LD any day.
I hope you don't think I am trying to scare you or make ANY assumptions about you guys when you move here. Just from watching my friend and her ex, I want to warn couples that are entering a similar situation to look at the potential downfalls that might occur. Especially ones that are not necessarily obvious.