Drop Down/Selection Box design on site for product selection

I have a website that sells only 8 products for homes in the U.S.A. and Canada only. Each of these 8 products is unique to different areas or states usually depending on the size of the home and climate. I need some type of drop down menu or selection type boxes set up on a page on my site where the user can click or enter what state he is in, size of dwelling, and maybe one other category and it will show the proper product out of the 8 that he would need. I can put the 8 products in Excel and break down what product is best for what area to make it easier. I have an ecommerce site with sunshop and I already have the blank page ready for the design. So if a user comes on the site he can quickly find out what he needs by going through this page, clicking his requirements and below will show the products to best suit him. I want this to look professional and unique in design. Just as an example is when you go to a calling card site and you pick your location and where you want to call and the proper card shows up based on your selections. I hope I made this clear and thanks for looking. I can milestone payments and will pay upon completion, launching of the work and confirm that it works perfectly.