FULL PHP/MySQL BUSINESS WEBSITE DESIGN NEEDED - UK ONLY.

Basically guys, i have bought an HTML template and need a website designed around it. Its going ot be a business website selling computer hardware and i need an advanced (as it can be) site. I already have an OSCommerce version of the site, but i now want a version that does NOT use Oscommerce, but is instead 100% coded using PHP/MySQL etc. It needs to be the whole site, with all product catagories/download areads/contact pages etc. I am willling to pay good money for this. Looking to spend £200-350, no more. ONE MAJOR FACTOR, IS THAT THE PERSON WHO DOES THIS JOB HAS GOT TO BE LOCATED IN THE UNITED KINGDOM. THIS IS FOR CONVENIENCE PURPOSES. Thanks!!