http://www.penpower.net/product/llc403.html
Sorry it's chinese, but I find it useful to draw and write chinese characters (you don't have to worry about the chinese part) it works in english too. It's pressure sensitive.
http://paintdotnet.12.forumer.com/viewtopic.php?t=856
Why are you posting this in the Tutorials forum? You should read the sticky at the top of the page, also in the link above. This forum is reserved for tutorial publishing ONLY.