Which Antivrus for Small Business?

I would like some opinions on what would be the best antivirus solution for a business with 25 users and SBS. Their current product is being discontinued and is not very good. It does have av and antispyware protection.

I would normally go Symantec Corp Edition but with all the negative reviews for Endpoint, I am hesitant to go that direction. Typically that is all I normally use at client sites. Symantec is no longer selling anything but Endpoint.

Can anyone suggest a good AV client that doesn’t eat up to much system resources as well as a good antispyware product. It does not have to be a managed client. The current AV is unmanaged so having another unmanaged client would be fine.

Thanks in advance for any suggestions.