Dress dilemma

Mum and I have spent the last couple of days shopping for my wedding dress, and I am now completely confused about what I want. I always thought I wanted a relatively traditional lace wedding dress, fitted at the top and going out a bit at the bottom. I did like these dresses when I tried them on, and my Mum really liked them. However, we then went to Charlie Brear, and I fell in love with about fifty of her dresses! We narrowed it down to a shortlist of three, all of which I loved. I went away with the details of these three dresses and I was going to think about it and make a decision between them. Now, though, my mum thinks I should think about one of the traditional lace ones again. I'm still pretty sure I want a Charlie Brear one, but now I'm worried that - with a year still to go - I'll change my mind and go back to what I wanted originally. Obviously I know a lot of people end up with dresses they didn't expect - has anyone done this and then changed their mind and gone back to what they originally liked? Or have you been happy with your decision?