I have recently started playing WoW and I found out that you can craft items. Now IMO this is really cool. I am assuming jewel crafting is the secret for eternal gold but while I was looking around I found out about being a scribe and the benefits of it. So I have decided to be a scribe and a jeweler. The only problem is that you have to get ink for scribing.
Now my question is, can you just buy the ink? Cuz I don't want to give up jeweling for herb gathering. -_-
If there are any other loop holes please mention them.

Also, I am a Priest Blood Elf at kick ass level 7! Have I chosen good professions for this class?
Oh, and what are secondary skills and what all falls into secondary skills?