I have been frequenting the honeymoon boards lately, and I have come across some really great stuff. Costco has a travel website for its members, and they have lots of great packages. Kayak is a great website to search for flights/hotels/cars. It searches many of the other sites (travelocity, expedia etc.) to make sure you get the best deals. Book-it is another great place to get vacation packages. They have some really nice deals.http://www.costcotravel.com/http://www.kayak.com/http://bookit.com/
The girls on the board are really amazing at sharing deals and tips, so make sure you hit that board when you start planning the HM. Many of them even have reviews about the restaurants, hotels and activities they did on the HM.