Don't know where you got that price but you can get Avira A/V PE and Comodo FW for free??? I haven't test ZA with Comodo FW but I use ZA pro currently and have Spybot and Avira PE A/V....Why pay for free versions of Avira and Comodo which can be downloaded for free from their site when they do have free version for use individual users??? And those have worked well for me....