If it wasn't for the fact that you're getting a tablet, I would have recommended a light box.
I use this one http://www.artograph.com/products/li...httracerII.htm
As for tablets - I never could get used to them. I'm the type who needs to see how my pen/tool is interacting with the 'paper'.
If anything I'd need one of those tablet monitors, but they are still rediculously expensive.![]()