Hey,
I currently don't run any BANS but, i found this website its very helpfull.. its about ebay partner network + phpBay
Look there you might find some nice tips and toturials for both EPN and also PHPBAY(if u ever thought of using it)
Phpbay got some nice plugin for Wordpress and this way you can really build some nice powerfull websites!
http://buydiscountgolfballs.com/
this is an example of one this dude's websites..
its awesome.. will deffenitly get ya some ideas.. :P