Other things I like about OS X (coming from Windows):
o A real command shell, I love being able to use Unix shells on this machine. Very nice.
o The Spotlight search utility. That thing is super fast, and without having to browse through Finder/Explorer I can be at a file after typing a few characters of its name. Much less time than actually browsing through the file system usually. Command + Space is a great shortcut for it too.
o Not sure what its called technically, but the breakout view where you can see all of your running windows at a time. That thing is a wonderful way to "declutter" your desktop when you want to switch to a new task.
o Installations being nothing more than a drag to the applications folder. That was a revelation after cumbersome Windows Installers.
o Built in applications that are fairly nice.
o Easy install of X11 -- and then subsequently OpenOffice. Heck, I feel like I'm back on a Unix workstation again!
o XCode -- built in development environment, with profilers for OpenGL and the like also as tools that came on the CD.
o Built in WiFi and BlueTooth (HW, not SW issue). The built in video camera took me by surprise (didn't realize it had it). My wife and I played around with Photo Booth last nite. Cute.
o The widgets are cool, but hardly unique to the OS. Tied in nicely seamlessly though.
All in all, I'm having a blast. Installing Parallels later to run Windows XP side-by-side should be a blast, and there's always Boot Camp if I want to dual boot XP.
For the record though? I don't care for the Mac vs. PC commercials. I always end up feeling for the PC guy, and wish the snobby Mac guy would leave him alone. But then I bought a Mac yesterday ;)
Expose.
I run a knockoff on my XP called TopDesk. It is a simply brilliant design.