I am going to be getting my first Mac when Apple starts their back to school sale. I am going to be getting the base 13" MBP and will be installing Windows 7 Ultimate on it. I will be using the Avira AntiVir on the Windows partition. I wonder if I have to install any AV software on the OSX partition? I have read these forums and noticed that many have posted that viruses are not really a problem with Macs, in general. ClamXav seems to be the recommended solution for those that want an AV solution. Btw, should I install the 32-bit or the 64-bit version of Windows 7 Ultimate? Should I upgrade to the 320GB HDD, instead of using the 250GB one? Also, should I get iWork if I already have the Windows version of MS Office? Thanks for any help.