Venue and food (linen, cutlery etc) will take up 50% of my budget. This also includes serving staff, security, clean up etc.
The other 50% is for everything else apart from the honeymoon and for wedding jewellery. I am Asian and traditional jewellery is a big deal in our culture, and something that the groom's family gives to the bride. I'm not complaining!
I think venue and food takes up the biggest chunk of most budgets, with flowers/lighting next.
In order from most to least:
E-ring and wedding bands
Ceremony and Reception Venue (same place)
Photographer
Florist
Caterer
DJ
Dress, Shoes and Veil
Grooms Attire
Invitations
Linens, Chairs, etc
Hair, Nails and Make-up
Wedding Cake and Grooms Cake
Transportation
Officiant
Wedding License
I'd have to look up the budget but I know the largest expense by far was food and alcohol for the open bar. I think it came to about 35% of our wedding costs (~$25k for 110 people). It is a party and I wanted the guests to have a good time, after all. Once I knew those costs, I figured out what was left for everything else.
Of the miscellaneous the next biggest cost was the photographer because I wanted great pictures.
Martha Stewart Weddings includes a budget page in every issue and I used it for planning. Totally helpful!