Custom Unique Website Needed

We are an entertainment company and need a sleek website to entice our audience with the many forms of social networking we use: facebook, twitter, youtube, livestream, etc. The website built pretty much from the ground up but we already have working forum software (IPB) and a google apps account we use. I would like the whole website to be linked with the forums and facebook and some universal chat system that spans the whole site. We also need a store to sell our silkscreened shirts. and finally, a page for our internet radio station (this is hosted on a separate domain) The project requires quite a of mysql (mainly in the store and radio station) work and again, it should be very modern with a light and easy to use feel. While being able to still display the massive amount of information that we require. It’s a unique project. The forums we use is Invision Power Board (IPB). This is not something you would have to setup. It is already integrated with Facebook and twitter. I would just like to use its database as the central login/user account control. I know it has some capabilities to link to other databases The shopping cart doesn’t really have to be anything special. Our main products will be custom made t-shirts with some other merchandise. Thirdly, it would just need to pull feeds form Tumblr (or blogger), Twitter, our Facebook Fan Page, and livestream. Lastly, I had an idea for the main page that would dynamically change based on the latest source of information (display our Livestream if it is live, if not then look for latest RSS feed from Facebook or twitter) I'm very open to designers opinions on how the site should go (you guys are the experts after all), these are just some starting points.