I have been freelancing and creating games for the past 10+ years and use photoshop etc daily. I currently use a Wacom Bamboo and before that a graphire and I'd recommend em to anybody.
They are very responsive, tough and although the drawing area might not seem that big on first glance it's more than adequate as you only ever draw in a small area anyway. I have tried my brothers no-name tablet in the past (with batteries in the pen...bleh) and was not impressed!!
I have had this one for about 3 years now, used day in day out and I think it's awesome ;-)