http://macmost.com/ Gary Rosenzweig tackles the controversial question of whether you need to buy anti-virus software for your Mac. There are currently no active Mac viruses and anti-virus software could cause unexpected problems. Staying informed and up-to-date is a better option.
Whether you use your Macs for personal or business use, chances are you aren't using them enough. Use them more! Use them for everything! Rule the world!