ad serving

Looking for someone who has already created an ad serving software that is ready to go. We require the following features: 1. Able to handle high traffic. Millions of ads per day 2. Server based (hopefully linux) 3. Able to track clicks, pageviews, IPs, vendors, customers, campaign results based on content, geo target by web site 4. Able to feed network of sites with banners, pops, skycrapers, etc. 5. Limit the amount of banners per site 6. Specify content per site 7. High end reporting and functionality