With NOD32 sliding down the various rankings I monitor, some incompatibility issues and my desire for change after a year of NODding I'm in the market for new anti-virus software that'll play well with the current version of Outpost Pro Firewall on a win7 (32 bit) machine. But I cannot make head or tail of what's the best option out there. For every wonderful test result and stellar review there seem to be just as many apparent downsides to the leading contenders, from speed to false positives to poor malware detection etc. I'm thinking of going with Kaspersky, but I'm also curious if any of the free packages (Avria, AVG, Avast etc.) can hold a candle to the likes of Kaspersky or Norton, which seem to be the two to beat these days. The paid Avira also looks good. Any advice or recommendations appreciated, both of software and the best testing sites to check out (I've been using av-comparatives and shadowserver as my main sources of info).