Hiya
I'll be at my desk most of today ...
Here's some basic banner samples:
http://www.carlajayne.com/design-portfolio-banners.html
http://www.carlajayne.com/design-porn-banners.html
http://www.carlajayne.com/design-casino-banners.html
The size you are after would be $20 to $50 each depending on how much work you want done on each ...
icq 3422430 or carlajayne at gmail dot com