I've looked for an online tutorial on this, but didn't find one in the usual (Park Tools and Harris Cyclery) sites. I think I've got enough background on how to do this for my Specialized Hardrock, but I'm hoping someone here can point me to one I haven't seen yet.

I've adjusted bearings many times for drum brakes on my older cars as well as the tempremental and complicated tapered roller bearings on the steering head of my first motorcycle when I rebuilt the front end. But I haven't had to dish a wheel yet, is that common when doing basic hub service on a bicycle? What else is unique to bicycle service? Thanks in advance!