What antivirus software should I run on a large Debian web server? You'd think there'd be a lot out there about this, what with Linux servers being in the middle of so many PC to PC file transfers, but pretty much everything I can find fits into one of these categories:

1. "LOL u dont need av on teh NIX n00b"

2. "With our solution, you will be synergyzing your upward mobility and monetizing your workflow with enterprise-grade infrastructure not to mention SEO and did we mention synergy? Download our whitepaper!

3. "Just use Clam."

Now, the people in charge are strictly Windows-oriented, and have left this Linux box entirely up to me. They would probably be comfortable with one of the corporate-speak solutions from #2. However, it seems like most of those are only available for Red Hat, and are closed source. Also, it is easy to find contradicting information, hard to find actual users' experiences, and it is clear that Linux is not where their priorities are. We use McAfee on our Windows network, so if there was even a murmor of a decent Linux product from them, that would probably be the favorite with the suits.

However, the only real requirement I've been given is that I use something effective, with up to date definitions. Is something like ClamAV enough for a website that will allow thousands of users to upload files for the general public? Is it effective and current enough to compete with big brand enterprise standards?