Why a Flash banner?
The visual impact that a Flash banner has over a traditional animated GIF or static banner is enormous. More complex animation can be used with very little adding to the download size of the banner.
Banners can respond to users mouse actions, such as playing a paused video when the mouse is moved over the banner. Even small games can be added to entice people to interact with the banners.
Get in touch to discuss what the best approach is for you.