I finally got some time over vacation to make this video, showing my current digital art tools, with pressure sensitivity, and ability to draw on the screen:
Unfortunately, being able to draw directly on screen + pressure sensitivity, comes at a much higher price than just one of the two functions. Here are the rough prices, googled late 2012.
Wacom Cintiq 12" - 24": ~$1000 - $3700 for monitor/tablet, without computer
Samsung Series 7 Slate: ~$1000 - $1300
Apple iPad3 with Jot Touch - previously reviewed: ~$500 + $100
Samsung Galaxy Note 10.1 tablet: ~$500
Samsung Galaxy Note 2 phablet: ~$300 on contract, ~$670 without contract
Sketchbook, the best digital art app ever, and cheap!
PC/Mac - Sketchbook Pro 6: $60
iOS/Android - Sketchbook Pro (tablet paid version): $3
iOS/Android - Sketchbook Mobile (phone paid version): $1
Sketchbook on Samsung Galaxy Note 2
Sketchbook on Samsung Galaxy Note 10.1