Weddings are so expensive! What are some creative ways to cut costs?

My daughter is getting married the end of February. She didn't leave much time for planning and preparing! This is her second marriage, but first "wedding". She wants a really nice one, but she is very budget minded. They will probably have 100 - 150 guests. I sure would appreciate any creative suggestions that can cut down on expenses. One area is reception.......the groom does want a really great "party".........dance, drinks, socialization.. He does have a DJ friend that is providing his DJ'ing as a gift. Creativity is good for any part of the wedding.......it will not be a comletely traditional wedding. But she does want it very nice. She does have her wedding gown. Everything else is still in the planning stage though. Help!! The time is closing in fast! And money isn't easily available. Thanks for any ideas and suggestions as to where, how and what! (An outdoor wedding or reception is not an option.............it is located in a pretty chilly part of the country.