This first one is geared to new Mac mini owners but it applies well to all Macs, Ars Technica.

The second is a number of bullet points about using a Mac,
Tao of Mac.

And my own advice, you will find that certain tasks when done in OS X will seem strange in their method but will soon come to realize that this is the way things should have been done all along. Also, if you think you can do something a certain way with a Mac, 9 out of 10, you can.