Ajax Conversion & Extra features

I just had [login to view URL] built for myself on custom code. I need to convert important aspects of it to use ajax so that its user friendly. There are some key features it needs to make it useful & fun. The vote buttons on the front page need to be Ajaxed with a drop down text input.....(text responses are counted as votes in the sytem). Unlogged-in & members need to be able to use the site. (currently membership only). After awhile prompt for signup with a cookie. I need my site to accept formatted submissions (link & title) bookmark style into current forms from external sources like so [login to view URL] does. I'd make my own little icon for it. Some kind of spam detterent would be nice too! I need an external voting widget, or maybe something that would work on facebook that takes users on a tour through all the debate questions. This may not be required right now, but If you can do this you will more likely be chosen for the site. Basically its just scripting & designing a few extras onto my debate site to make it really useful for people. Right now only members can use the site, and its not that much fun :) thanks! stealthgear