Taking a look at the original XP-Pen Artist 12 and the new Artist 12 Pro.
The Pro is seriously impressive and totally worth the extra ~$50 over the Artist 12. Personally, I would even recommend it over the Cintiq. It's just that good. Back when the Cintiq was the only option for screen tablets I would have never imagined something this high quality would be available at such a low price.