Oh yeah...
Some of the folks have been citing that MAC comes with more software that you are actually going to use and that you'd have to pay for the same functionality. Don't you believe it! There is plenty of free software out there for Windows if you just know what to look for. Here is my standard load list:
1) Open Office - Basially free MS Office (without Outlook). You can work on Word documents, Excel Spreadsheets, Powerpoint presentations, and Access Databases. The funny thing is that SUN distributes the product.
2) Thunderbird - Who needs Outlook anymore?
3) FireFox - I shouldn't have to say why this one belongs.
4) AVG - Because nobody should have to pay for anti-virus.
5) Zone Alarm - Because nobody should have to pay for a firewall either.
6) GIMP - Because I really don't want to pay for Photoshop.
7) Ad-Aware - A decent spyware detector/remover
8) VMWare Server - So I can run any variety of the free Unix/Linux OS's on my machine.
All of these apps are free. I really can't think of any more that I'd want for typical use.
Stuff like GIMP and VMWare is fine if you like working with computers, but it isn't so hot for a young relative or Grandmother. The mac apps are far more user friendly and accessible to the non-gear heads.
It isn't strange at all that Sun helps distribute Open Office. The fact is that most people could care less about what the OS is, they want/need Excel, PowerPoint or MS Word. THAT lock in is what built windows into the dominant force. So what ever hurts/weakens people's usage of MS Office, can only help a company like Sun.