A typical CMS with RSS supported project. You need an account management module, a content management module and a RSS generator page. PHP and XML is the basic technology, but optimization is a must for this project, as your server has to refresh every 10 seconds for per user. I can finish this project within 7 days if you could give me the exact requirement or let me know the structure of your database table and details of the procedure. Demo will be presented in 2 days after we have chosen each other. 200 $US to no more than 250 $US is good enough for this project. And, I can gurantee you a month long free maintainance of those scripts developed by myself(maintainance refers to non big changes to original design).