CSS Redesign

I'm looking to have someone redesign my site using CSS to be? W3C compliant. ? I would like to get rid of all tables that are used for layout purposes in this process. ? It is somewhere in the neighborhood of 50-60 pages.? 40-50 of them would be very similar changes, the remaining 10 or so are more like modules that are included in the other pages. Most importantly, the design needs to be flexible enough that 2 other stores can use the template and look quite different. ? You may need to work with a 3rd party designer to make sure the code changes will be flexible enough to allow for alternate designs using the same code. ? Please include this in your bid. Also, I will be the one making the changes to the actual PHP pages. ? What I would like is for you to go through the pages as they are rendered (I can make a list of all urls that would need to be changed) and you make a list of changes to be made. ? If this sounds like it would completely complicate the process I might be able to make duplicate PHP pages for you to make your changes to.