There was a bit of a discussion recently about graphic tablets, and it would appear as though there were mixed feelings on the subject. I tried one of the Serif Hyper 6000 on special offer at £14.95, and personally I just couldn't get it to work to my satisfaction, so it was un-installed.Others had used this tablet with good results, so what pleases one may not please others.
The Wacom brand seem to be the best buy, and is well recommended. If you put 'tablet' into the PCA search box, six postings are listed there, so it may pay to have a browse there. Here's one to start with click here