Buddypress plugin modifications, only Buddypress skilled dev

I need some modifications to actual Buddypress plugins: 1. Emulate the same functionality of facebook wall. 2. Emulate the Digg rate system My req. are: When user post an activity in Buddypress, he can: - Enter a normal text or HTML - Enter a video (by Link, translate youbute, metacafe, ... link into embeded video) - Enter a image (by Link, write a url image, flick, etc.) - Enter an event (like facebook) - A Link to web (Blog post, then will extract title and first image) Take note: 1 - I don't need upload video/image, all by reference (links) - All must be inside "Activities" module, I don't need separate, or grouping by kind (video, event...) - Must be work in any section (Group wall / user wall) 2 - User can vote any activity (same functionality as digg) - Must be a extra order/filter in Activities list: "Most voted" Suggestion: There are all I need as a separate plugins, you can merge them, if it is the best way: - Buddypress Links [login to view URL] -oEmbed for BuddyPress [login to view URL] -BuddyPress Events Calendar [login to view URL] I already have the lastest version of Buddypress installed, configured and running. Your plugin must work with the last version of Buddypress.