RGN! That's what I've been carrying too. I love my PPK! It's accurate, lite, easy to carry... may not have a lot of stopping power, but it's nice just for the sheer convenience of it. I carry mine in a belt pack or shoulder holster, depending on what clothes I wear. Hehehe, plus there's the bonus of all my cop buddies calling me Bond when they see me.
If I'm actually on duty (which is rare), I carry my Glock 29 10mm. Now
that is stopping power.
I have both shoulder and belt holsters for it, depending on situation. It's been a great pistol and I highly recommend it.
Edit: and yes, I have a CC permit.