Antivirus on E-mail Server II?

It's time, we start to scan mails for virus, when they pass through our SuSE E-mail Server II. Which tool do SuSE intent to use in the next version of E-mail-server: Amavis, avcheck or Avmailgate. What antivirus-package and license do we need need to buy (or windows desktop-pc's are protected with a AVP platinum site license)? mvh... Morten Christensen Denmark