Here are enhancements that I would love to see:

1. Drop-down menu selection for Bedrooms & Bathrooms.  This would eliminate the confusion for end users on whether to enter 3, 3 bedrooms, three, 3brm, etc.
2. State field to be pre-populated with either "GA," or "Georgia," etc.
3. Listing Type field to designate whether it is a rental or a sale.
4. Drop-down for A/C, Heating, and Garage
5. Ability for "Add Listing" as a stand-alone module (maybe this is possible to call this control and I am too new to DNN to know how).
6. Hide "Simple Search" option.  Having looked at every major real estate site (realtor.com, zillow.com, forsalebyowner.com), I have never seen a "Simple Search" function.  I personally don't think people know what to put in that field.
7. Option to display Search results grid with icon that designates if the listing has a photo and on-mouseover displays first image.  Also, have the search grid with ability to alternate row colors.

If you added drop-down options, you could always maintain in one table with an additional identifier as to what field it references. 

I would be happy to provide additional comments or beta-test as I am about to go live with my real-estate site peekinmyhouse.com.

Regards,
Jim 
(jim (@) peekinmyhouse.com)