Oh yes.

Update (late, late in the evening): Oh no.
What's good:
- It works.
- It's beautiful.
- Q:
whereis ruby? A:/usr/bin/ruby. Yum.
What's bad:
- My shiny new 21" flat panel monitor has died on me. Well, partly died. It's not accepting any signals over DVI any more, only VGA. Crap. Fortunately, it's still well within its warranty period.
- The Mini isn't automatically detecting the monitor's native resolution of 1680 x 1050, and I don't know enough about OS X to change the resolution to something non-standard. So I'm running in crappy 1400 x 1050 fuzz-o-vision right now.
- Actually, I don't know enough about OS X, period. (How does this dock thing really work? What's the right way to install applications?) Anyone with Mac experience care to recommend a decent book?
- I got myself a new Apple Pro keyboard aaaaand....mmmm...not convinced yet. I like the keyboard action, but I don't like not having anythere to rest my right hand's fingers nearby the arrow keys without them getting caught in the grooves.
- And what the hell's up with putting the @ sign over the number 2 key? Yuck. (Again, anyone with Mac experience...please point me in the direction of a keyboard remapping utility.)
- And the mental gymnastics of getting used to a different set of command keys... Yurkle.


Dave Morrow
"System Preferences" is the equivalent of "Control Panel" (fire it up from your applications folder or the Apple logo top left of the screen). Lots of useful utilities in there and you can play with display settings. I've never played with a keyboard remapping tool but then I'm lazy and happy to stick with the default mapping! Using apple>C/P rather than control>c/P for copy/paste was a bugger but I got used to it.
I had an earlier version of David Pogue's "Mac OS X The Missing Manual" which was pretty good. Mind you, most of the info you could either work out yourself by mucking around or info off the net.
The dock is plain odd to begin with. Although it works for me I know lots of people switched it off and got 3rd party equivalents. Basically you can stick commonly used applications on it (for easy lauch). It shows which applications are open (small black triangle beneath them) and also holds minimised windows (on the right hand side of the black line). Settings for the dock are in System Preferences.
F9-F12 are interesting (Expose and Dashboard). You can setup Active screen corners for these in System Preferences (which I find invaluable).
In my experience most applications come as a compressed zip, sit or dmg file. Double click will either unpackage into a folder or mount the disk image. Within this there will either be an application setup script (very like windows and you'll need to enter your password) or simply the application itself (one icon that you copy to the Applications folder). To uninstall - go to the applications folder and find the application icon (occasionally this is a folder). Then stick it in the trash.
Hope all that nonsense helps!