I am still having a wonderful time doing all of my work on my Cintiq. Who says you can't teach an old dog new tricks? (so long as you don't expect them to learn more then one thing a day, nor expect them to remember it tomorrow:)
There are a number of free tutorials re: Photoshop, on Lynda.com and learning how to use the "mixer brush" has been amazing. Check out that tutorial if you have a moment, it's inspiring!
Here are 2 examples of recent practice runs with "mixer brush". The first is a fast sketch, took roughly 1/2 an hour, from "pencil" to "paint", and the second was done over the course of 2 days on the weekend.
If anyone has ever signed on for the Lynda.com full tutorial, I'd love to hear what you thought of it. I am very tempted.