Here's the LCP. I'd recommend it over something similar like a Kel-Tec even though they are a little more expensive.
http://www.ruger-firearms.com/LCP/

And as far as the revolvers go, Smith and Wesson Airweight J - Frames make great pocket guns, but they are a bit pricey.
http://www.smith-wesson.com/webapp/w...04&isFirearm=Y

If you want a cheaper revolver check out Taurus.