Some other things that Mac's do better than PC's
1. Close the lid and the iBook will sleep, when you open, restart is almost instant, while PC's can do this as well, restart takes longer and is not so reliable than sleeping a Mac.
2. Mac has Expose as standard, a way to instantly see all you open applications and documents on the screen.
3. iBooks have DV (firewire) for DV camcorder capture and editing as standard, only some PC notebooks have this facility.
4. ILife applications, and integrated set of Applications that cover Music, Photos, Movie editing and DVD creation( iDVD only comes with SuperDrive iBooks). Similar functionality can be found in PC land, but not to the same level of ease of use and integration.
5. Fast user switching for multiple users sharing the same computer.