For what its worth Trend Micro do good security products as well. I once had to administer an older version across a regional health network and the product stood us in good stead and their support and knowledge base was really good.

The small desktop versions of their products usually carry three licences which can be moved from machine to machine if need be and the interface is reasonably friendly as well... something which cant be said for Kaspersky.

Cheers,

Andrez