Well what you might be having a problem with is finding a designer that can code in there own design. I just had a discussion with someone about this.
Sure a designer can probably easily make a good layout for this but having that same designer code it into the working script is a whole other matter.
I would reccomend you settle on a design then have someoen that can code take the design cut and integrate it to the script.
Run away designers that did not deliver you should give us some names
I do not like "Designers" running around taking money from people it gives hard working guys like me and many others a bad name and directly cuts into everyones pocket. I rather see the money not taken but goto a good designer so the names would be helpful so these people are not used again by others.