Here's the FAQ on eBay's Shill Bidding Policy. Unfortunately, it doesn't look too serious to me..

In their words, "everyone deserves a seconds chance"...

(Isn't that special!!! Makes me want to go out and hug a tree and save the ozone!)

http://pages.ebay.com/help/basics/f-shilling.html#5

Steve in Albuquerque

(For comparision, several months ago I got a "warning" from eBay because we had placed "hidden spam words" within one of our ads for a Smokey Bear item. Since some people don't know how to properly spell Smokey Bear, We added the incorrect spelling "Smoky Bear" and placed it at the bottom of the eBay ad, using the color "white" so it was invisible on the page. That way a person doing a search for Smoky Bear would also find our auction page with the "Smokey" item on it. We got a nasty email from eBay threatening to cancel our account for doing such an evil thing!!)