Nicely done! Looks very clean now. Most artists (not all though, the legendary Phoenixsong uses a trackpad) use some kind of Wacom-brand tablet. They're scaled basically in order of price: Bamboo, Intuos and Cintiq.

I have a Bamboo and it's pretty nice. Kind of small but really cheap and gets the job done. I've seen it as cheap as $60 but it can go to $100
Intuos is much bigger and a bit more sensitive, something like $300-400.
Cintiq has the nice capability of being a screen as well as a tablet so you can see what you're drawing and you don't have that disconnect, but it's exorbitantly expensive ($1500 I think? Could be more). Some companies are coming out with cheaper alternatives which are more comparable to Intuos price levels.