I know a fab one in York. They post the flowers anywhere and are very well packaged, you can talk on the phone with the florist about what you want, and you get really unusual and beautiful arrangements. When you talk to her you can be as vague or as specific as you like (e.g. for my grandparents' 60th wedding anniversary I told her I wanted pink but nothing girly or sweet, and I also measured the vases and gave her the dimensions. All this for about the same cost as interflora! I'll try and track down her details for you.