Create a drop down menu of rented property prices

Hey folks,

newbie to the forum here. And apologies if this has been covered before... truth is, I don't know an easy way explain/look-for my answer!

I'm making a site for someone which will have listings for rented properties.

So, first of all, there'll be a content type called listings which will enable registered users to post listings for rented properties (price PCW, location, description etc.)

To help people search through the listings when they visit the site, I need to have some kind of drop down menu setup that enables users to choose between minimum price and maximum price a bit like you can see here: http://www.whitegates.co.uk/index.html

Does anyone know of a module that can make something like this happen? It's frustrating because I can totally code this kind of stuff in PHP when i'm building from scratch but i'm finding Drupal's code very pretty difficult to get my head round...