Business cards

So I've been looking at my business cards that I made earlier. They're okay, nothing fancy, missing some info though. So..
I've designed some 'new' cards. They are still simple, black and whites, but I'm not sure which ones to go with.
Should I bite the bullet, and go with colour ones? Add photographs, put my name, e-mail or anything else on it? Make the design thingy metalic ? So many questions, I know.

Let me know what you think... facebook me....or post comment