Just recently, my Norton anti virus subscription expired. I was really not satisfied with norton since it was not detecting all of the threats on my computer. One time, my computer was infected with a nasty Trojan that downloaded a ton of spyware to my computer and made it run so slooooooow. When I contacted technical support, they said that they would be willing to remove the spyware for a "nominal fee" of about $100. After I heard the guy say that, I knew that I have to get new protection. So I decided that I would give bitdefender a try. In terms of features and the level of detection, it was FANTASTIC. However, the only problem is that bitdefender does not function with utorrent. That means that bitdefender is out of the question, since I frequently use utorrent to download files that I want. I was thinking about trying kaspersky next, but I also heard that avast was also pretty good. Which of those two would be better? One of my friends told me that he only uses zonealarm pro to protect his computer, but I wonder if that provides adequate protection against all of the threats that are currently out there. I don't mind if the program is a bit of a cpu hog, I just want something that's excellent at detecting threats. I am currently using windows xp home edition. My cpu is a pentium 4 2.2ghz with an fsb of 400mhz and I have 512mb of pc800rdram. Based on what I want to do, what would be the ideal protection for my pc? Kaspersky, avast, zonealarmpro, or something else? All input is greatly appreciated.