Design a price comparison web site

I'm interested in designing a price comparison web site. i dont want a clone of other price comparison sites. i want something original. i would like a site which is a bit of google shopping and amazon. I'm not going to specify too much info here, you can contact me for more if you think you qualify for this job. only experienced developers (more than 5-6 jobs)? need apply, developers with no experience will be ignored. Do not bid if your'e working on more than 2 jobs at once, i don't want someone who's in a rush or keeps on getting mixed up between his/her different projects.