Once my trial is up I am going to stick with NOD32. However, I would like from time to time to scan my system using another companies product just as a precautionary backup scan. No single anti-virus product is going to catch them all. 1. Do you all do this? 2. If so, which scanner do you use? I'm thinking about Bit Defender's or Kaspersky's free scan. By the way, I do the same for Spyware. I use the MS beta product to occasionally scan for spyware.