Banner Adverts

I am looking for someone who will be able to produce banners on an as and when basis. Theses banners will be produced in different formats and and sizes as and when they are ordered. Below is a breakdown of the different types of banners we will need creating. Each time a banner is ordered it will be a fresh design and build. Banners For Website and Newsletter Please send as? animated .gif or swf (flash) files for the website Please send as? animated .gif or? .gif files for the Newsletter as it will not support .swf files.? If they are [login to view URL] please can you ensure the first layer holds the main content of what you wish the banner to say as certain? versions of outlook? freeze images.? ? Banner sizes for both site and website? (in pixels) Leaderboard 728x90 Banner 468x60 Strip Add 784x45 MPU 300x250 Button 120x120 Skyscraper 120x600 Sponsor banner 234 x 60 I would like ideas of costs and also how this relationship would work ie on a per banner basis, per size basis etc. All interested parties please contact me.