Thanks to the generosity of my parents, I am now the proud owner of the 22HD Cintiq. For a long time I had been using a tablet pc (the HP tm2t, which was pretty good) as my main digital drawing tool. Tablet pc's are nice because they are full on laptops, and therefore portable and convenient, and I thought more than good enough for doing art. I figured that using a cintiq couldn't be that different from using my laptop for drawing and painting, but I was totally wrong. The Cintiq is so sensitive, way more so than the tablet pc. It has so many functions as well, including the sixteen buttons and two touchstrips on the back.
It is a fantastic piece of technology... and I don't think anyone would regret buying it, though it is such a huge investment.
And here is some samples of what I've done with it. Most of them are just coloring, but there's a couple drawings as well :)