Drop down menus based on existing database structures, particularly as structured as you guys have it, would be EXTREMELY useful and a wonderful selling feature to your prospective clients/customers...

In a printer company's case, for example:

Choose Brand > Canon (Brother, Dell, HP, etc)
Choose Type > Inkjet (Laser, MICR, Ribbon, etc)
Choose Printer Family > BJC (could be any of the Canon printer families)
Choose Printer > BJC 4100 (again, any of the BJC printers that are in that category)

The line could be, in this situation in the db:

Canon > Inkjet > BJC > BJC 4100

or

Canon > Laser > LJC > LJC 2300 MFC

The first drop down choice would populate the second drop down choice, and so on and so on...

If anyone decided to do something like:

Shoes > Nike > Mens > Air Max
Shoes > women > adidias > strato

That could all be in pulldowns?

That would be incredibly useful.