I own an intuos 4 tablet which i use when im home, but because im rarely home I probably use it once a week or less. So i was thinking of buying a Tablet PC for practicing or as a portable digital sketchbook. I would like to know a good and affordable tablet any of you might recommend, im looking around a budget under $800, also it would help a lot if any of you could also put a link of paintings made on these tablets. Thanks upfront.