As I recently purchased the Bamboo Wacom tablet I have been playing around with it. I love the way it interects with photoshop as it reads exactly how much pressure you put on the pad. Also the Art Rage program that it comes with is excellent for drawing, it applies all the physics of paint. So for example smearing the paint and putting on different coats of paint. I very cool piece of software :)

So I made myself a quick concept sketch of a fictional revolver, hope you like it :P