I'm guessing you are doing this for hobbies rather than pro, because if so then the wacom bamboo series will suit you good for what it's worth.
Since I'm actually doing semi-professional stuff in my free time and at school, I chose the intous 4 wacom, which is much more expensive but better for the stuff such as sculpting and hard core digital painting.
Now if you had literally all the money in the world then I would suggest a cintiq due to the fact that you can actually move your arm around when you draw or paint, but if not then you might want to save three grand for something else.
The price always boils down to pressure sensitivity and size of the pad. Again, if you are doing casual to moderate type stuff then the bamboo your looking at is fine.