I installed VMWare on my Dell laptop, created a 30GB partition (of which 20GB is MP3/M4P), installed the Dell XP Pro OEM version in VMWare, which automatically picked up the system's XP key, and I got iTunes running in VMWare, Office 2003 for historical mail and the odd Word/Powerpoint/Excel documents which OpenOffice 2 has difficulties handling.
I guess the ironic part here is that I had to install an antivirus program on a laptop running Linux, but now that Evolution gets along just fine with the company's Exchange 2003 server (even the calendar entries shows up - I am impressed at how good it actually is!), I am in general a much happier human being running Linux, and I have the best of both worlds (depending on your point of view) being able to run iTunes and Office 2003 on my Linux laptop!
Administration: An ingenious abstraction in politics, designed to receive the kicks and cuffs due to the premier or president. -- Ambrose Bierce