Have you looked at the Hilton Garden Inn? They have space and know that they have packages that include catering, room rental, bar service, staff, etc. all for less than what you might get "a la carte" from a banquet house. There is information about weddings specifically on their site here http://hiltongardeninn.hilton.com/en/gi/hotels/wedding/index.jhtml?ctyhocn=ABYGIGI and the contact information to a sales manager who can answer any questions.
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