Anything at all you need to know how to do in any of the following: (whether you think it's possible or not and as technical as you want) PHP 4/5/6 MySQL (+cluster,spatial,stored proc's etc) ECMAScript (Javascript) CSS (2/3) Apache + Mod Rewrite Server Config (linux,win,unix) specialising in all things black/technical/debugging (scraping, securing, multithreading).. if your stuck and can't get an answer pm me with your problem and how much your willing to pay to fix it and I'll get you sorted