[Zope] eCommerce in Zope

Hi all zopista's, I am about to embark on a journey into the eCommerce world of zope and was wondering what your thoughts are on the following products. -Bizar Shop -Atshop -EMarket -Wampum Generator, a CyberCash Connector for Zope -zCommerce Have you used them, pros & cons live working realtime examples. Looking forward to your feedback, Cheers, Wayne