From everything i've read , and from personal experience , i have found that most of the bigger name anti-virus software companies put out good products . i've used pc cillin , mcafee , norton , and a few not so well known brands . they all do well as long as you keep them updated . i'm currently using norton with zone alarm firewall . being as i'm on an old fashioned phone connection , i dont have to worry so much about a heavy duty fire wall . if your running on a broadband connection , then a hardware firewall is almost a must . most of the software firewalls are pretty easy to bybass if you know what your doing . the same thing applies to virus protection . there are hundreds of new viruses coming out every day , and its hard for even the best anti virus software to keep up with them all . if you find that you have a trojan , key logger or some other infection already resident on you pc , then there are several software packages out there that are designed to remove them . one nice one is ad-aware put out by lavasoft . you can find it on download.com and its freeware so no extra expense . kazaa is a real big problem as it comes bundled with spyware and adware built in .