Ad Server Development

I'm looking for a Banner Ad Server that generates Ads that can track mouse-overs, impressions, form completions, and many more advance features. Developers who have got experience in developing Ad Server who can demonstrate their skills on the same field will be having an edge over the other developers. Developers who have used OpenX in the past are welcomed. The complete project requirement will be passed on to deserving bidders only. Get back to me with your past work to obtain the complete project requirements.