We've recently implemented Dell SonicWALL firewall devices at a few sites for some of our customers, who were nearing the end of the software and hardware support on their old firewalls. The SonicWALL devices come with Intrusion Prevention, Gateway Anti-virus and Anti-spyware. Content Filtering. Email Anti-spam and 2-factor SSL VPN features are also available.
The migration to SonicWALL has been pain free, and the feature set at this price point makes it an excellent option.