WoW.com talked a few weeks ago about the ability bonuses exclusive to each profession. The idea behind this, of course, is that the majority of these bonuses are relatively equal to one another. If you're a master of your profession, you can expect to receive about 80 Attack Power or 47 Spell Power. You could also pick up an additional 60 Stamina if you're an Enchanter or a Miner.
These are the most common bonuses available to all the professions. However, there are a lot more stats in the game than just Spell Power, Attack Power, and Stamina.