Well it takes about a year for me to get something that AVG and Spybot can't take care of. The reason I got "burned" two weeks ago was because like a moron I forgot to install spybot on my computer. I thought I had it but I didn't. Spybots teatimer is the best app ever. It'll catch ANYTHING. The reason I got so infected two weeks ago was because all I had protecting me was AVG. It still took over a year for that to happen though. AVG is very efficient. I know I wouldn't have gotten anything if I had spybot installed.
As for what I'm downloading, I can't be too specific about the files because I'm sworn to secrecy but they deal with modifying your core operating system. A lot of the time they're infected with s*** but occasionally you can get something great. Unfortunately the hacker forums have a lot of bad people there just trying to further their own goals and they do that by trying to infect others. They upload a file and make it sound like a really good hack tool when in fact it's a big bundle of viruses and spyware. <_< When you're a hacker and have hacker friends, you've always gotta watch your back.
I KNOW when I'm infected. If my computer takes longer than 20 seconds to boot, there's something wrong. If I start getting error messages that make no sense, there's something wrong. It's not hard to tell when you're infected.
I'm thinking of having another computer right next to mine that's just made for downloading so I can scan the files before I put them onto my master. The trouble is my router is in my office (because I want my office to be totally wired for optimal efficiency) so my room runs off wireless. So does my moms. My mom has two computers connected to wifi; an apple imac and an apple ibook. I have two computers connected wirelessly too. I don't want to add any more than 4 computers to my wireless network. I prefer wired connections because they're much faster. If I were to add another computer to my room just for downloading, it would add another computer to my wireless network. In addition, I would have to get another 22" widescreen monitor for the computer I would add, which is a significant expense (I'll be getting a decent brand. It costs over $400 for a good one). Because of this, I don't think I'll be doing this.