comparison features for my loan site

Hey, I am making a site comparing payday loans and would like the user to be able to choose a loan amount and how many days they want it for and then for it to show a table with payday lenders showing the features and cost of each lender. I would like users to select these amount using a slide bar. [login to view URL] have a good example of a slide bar in action. [login to view URL] have similar functions to what I'm looking for. The table listing payday lenders will have to dynamic and based on the values selected by the user, so each lenders apr will have to be in the code and then the right total cost for each lender will come up based on the loan amount chosen by the user. Also there will need to be a way of excluding lenders from the table, eg, if someone wants a £500 loan, [login to view URL] only allows £400 loans for new customers so they should be excluded from the table. I have a basic site up at the moment at [login to view URL] which is running on joomla, so if these features can be added to my joomla site that would be great, so the new features will fit in with the theme of the site. I am looking for the site to be very user friendly easy to read so users can get the information they need without hassle. Thank you, Andy