Well, without "Powers," one is only a hero, a vigalante, or insane.
If I went for any of those three, I'd use my tools and training (leatherworking, metal working) to turn one of my leather coats into a set of bringandine mixed with a cloth/paper laminate to start out my body armour. It's be cheap, heavy, and not up-to par with military grades, but hey--it would stop a knife and most small caliber arms.
My name--Civil Sword--as I'd be on the good side (civil) and would probably carry my Katana.
Most crime fighting would wind up being fought in a less than super way--with conventional arms, however, so I'd carry my pistol and carbine (both 9mm, and both guns use the same magazine).
As for fancy stuff, I'd use charded capacators and home-made bean-bag rounds for stunning, as well as "black eggs" to stun/blind people.
I would most likely get caught or killed in a matter of weeks or months, though.
Now--give me super-powers and ask THAT question, and I might have a better answer.