Design and build a new, interactive website for an educational project

I need to have built a website that can upload or link to video (e.g. Youtube) and has dynamic question posting/voting capability. The site will be used to allow students to post questions to teachers and allow the teachers to answer the questions that are prioritized highest by votes. I would also need to understand what capabilities I would need to acquire to collect, store, and organize the student data and the questions into a database. A good model in terms of design aesthetic and structure would be thepoint.com. To start, the website would need 5 main pages: Home: Short text introduction on the purpose of the site. Large block links to other main site pages. Facebook and Twitter sign in links. Profile: Form that allows students to enter their information, list the teachers they want to speak to, and their top questions. Information to be stored. Question: Lists names of teachers, categorized by subject. Each name clicks through to page with the questions for that teacher, ranked by the most votes. Allows other students to add questions for that teacher and to vote on other peoples' questions. Dynamically updates to show questions in order of most voted to least. Answers: Posts text or video answers from each teacher, categorized by subject. Updated periodically Community: Text updates from administrator After this project, would need ongoing help for additions and maintenance. Thanks for taking the time to review.