Let me expand. All of our incoming e-mail is filtered through Postini, which uses McAfee, before it hits our computer. But we have been infected twice in the last two years. We don't do much broad ranging internet surfing, myself the fly fishing bulletin boards, but my wife signs up for every freebie, giveaway, coupons, etc. I installed Ad-Aware this weekend and it found 187 critical objects, which I quarantined. It did indicate a possible intrusion, that's why I'm concerned about the firewall. If I can download some shareware and save some money, that would be great. But I'm most concerned with software incompatibility, that's why I thought the Norton product might be best, since I have their software already installed on the computer. Thanks foe all the input.
Steve