"What tools did you use?" Photoshop CS2, and Tablet
You are using a graphictablet WeisseEdelweiss? I have for a while been trying to buy one at ebay, but so far the wacom tablets were always sold for more than I was willing to bid. In spit of the fact that the wacom tablets are supposed to be the best (no batteries required for the pens etc.) I guess I might have to settle for a cheaper tablet.
I wonder if you can give me any useful hints which I should keep in mind when looking for / working with a graphic tablet?

I'll be honest with you, Malte. I didn't have a clue as to what kind of tablet I wanted, however I came across a rather large AIPTEK tablet. It works very well for me.
You're absolutely right about the batteries. Although it can be annoying, I learn to live with it. ;3
What I find, when people first start out with their tablet, is that they have a difficult time drawing on the equipment and looking at the screen at the same time. This difficulty holds merit as we are all traditionally accustomed to looking at we draw or write as we put it on paper. Getting use to the tablet is all something that comes with practice just like drawing itself.
Working with a tablet has many benefits vs using a mouse. It provides as much control (if not more) as a pencil on paper. I'm a big fan of traditional art yet I'd much rather use Photoshop and my tablet. It's a geat opporitunity to work with extreme detail.
I hope that assists you. If you have anymore questions ask away. ^^