Michlo: My follow-up question is - what are people spending money on that they need to be "rich" ? So far I've not found myself short on money or ingredients.
I think the only way to run out of money is to use crafting a lot. If you really try to make every new armor or weapon that you see a diagram for, it can get expensive. You have to buy the diagram (usually), often buy some components (most notably silver ore for crafting silver swords) and then pay to actually craft the item. Also, I'm finding that especially at the end of the game, you will run across something better to craft very qucikly. I find myself saying "man, I JUST crafted a new sword and now there's an even better one?" a lot.
However, crafting is usually completely optional, and you'll find plenty of items as well. So if it's not something you want to bother with, you'll probably never really have any cash problems. Also, if you show some restraint and don't craft EVERY single thing, then you'll still have enough money, even if you're not overflowing with cash.
Buying books in the earlier chapters can be a bit expensive too, especially if you're also crafting items. But I was usually able to earn enough to buy all the books I wanted.