Hi - I am having a huge wedding......weighted 30% my side, 70% his side - rough approximation.
Was concerned about who was going to pay for them all and felt bad for my parents who were constantly worried about this "Bride's fam pays for the lot" tradition.
The situation now is that my fiancé has had a chat with his parents who have agreed to help him out with his costs and to pay for their guests (costs for the core wedding stuff in there too.....per head, not just food etc) too.
My parents have offered me quite a large sum but I won't be taking it all as feel awful. At first they held back offering anything as they were worried about having to pay for the lot when we really are a small family. Then out of the blue they offered me some.
I have been saving up for my portion, banking all my bonuses from work etc...and set some aside each month.
If I do need to pay for anything else extra and have no money left then worst case scenario would be to use interest free credit card.......but will do everything to avoid that.

Usually, or from what I gathered doing my "asking around".....the normal is to go thirds or depending how old you are, bride and groom pay for the whole thing and welcome any contributions.

Hope this helps