totally agree with dinodog_Jr. wacom is undoubtly the most essential tool in digital painting. depending on ur purpose, usage & budget, u can choose either the simpler Graphire series or the more potential Intous series. i own a Graphire4 which is enough to serve my multimedia purposes but when it comes to digital painting, Intous3 will be the big dog.

here are the official pricelist according to wacom
http://www.my.wacom-asia.com/price/price.php

i bought my graphice4 at lowyat in a mac shop.