Suggestions to set up a survey which suggests certain products?

Hi all-
I want to create a thing for my soap website where customers will be able to take a short survey, and based on their responses a recommended fragrance or product type will be suggested. Does anyone know how to do this, or know somewhere I could go to learn how to do it?
Thanks!!

surveymonkey.com

This is a great site! You can create a free survey and place the link at the end of the checkout process... then make some kind of system to entice the buyer to take the survey, such as a discount coupon... you can then provide the discount coupon code at the end of the survey. The survey can give them the coupon code once the customer has reached the end of the survey.

Great idea actually, I knew about the site but I never though about using it this way.