Flowers for the Wedding

I'm currently trying to plan my wedding which is scheduled to happen at year end, amidst my busy work schedule. I've been trying to draw up a budget and was really at a loss at what to budget for wedding flowers. The amounts I was told by friends who have gotten married before varied greatly, from a few thousand to just a few hundred for some. I guess a lot of it depends on which florist you use and what sort of wedding flowers you want. I am really quite at a loss as I do not really have a favourite flower I was planning to use. On top of that, my wedding will actually be held in my hometown where I am not sure what sort of flowers and arrangements they have. I think I need to do a lot more research on this!