If you like the Walther PPK, check out the Bersa Thunder .380. It's basically the same gun, a little cheaper. They make a CC model, but it might still be a little big for pocket carry.
Thunder Concealed Carry
You can also find a Ruger LCP or LCR with a Crimson Trace laser already attached.
Ruger® LCP® Centerfire Pistol Model 3713