Market Place

Looking for a website that is similar to EBay where registered sellers can post items (products / services etc) and registered buyers can bid for the products / services. For example, I may be at work late and I need to ensure that the dog is fed. I want to be able to go to a site and list a job to state "Can someone please go to my house in Rhode Island" and feed the dog? I will pay $20. Other users will bid for my job and I will select a winner who will then be sent my home address. Once the job is completed, I will mark it and the website owners will transfer the agreed fee to the person who fed my dog. The website owners will take a percentage of the agreed fee. Simple. To register they would need an account and secure password & personal details. A section to enable rating and provide feedback on the buyers and sellers. A section to display the products with pertinent information, to close off products that have been sold; access to history of buyers and sellers. A section where sms can be sent to advise buyers and sellers of new products listed and sold etc. Users should also be able to use their mobile phone to post and bid and pay for jobs. Initially expect 100 buyers & sellers. Since we will be competing in a crowded marketplace the website has to be user friendly, quick and pleasing to the eye. Expect to announce winner by 19 November and get website up and running by 1 December. Thanks Vineeraj.