A few months back, I picked up a Wacom's Intuos3 graphics tablet, the A4 size, and I’m honestly obsessed with this thing. It’s definitely worth the money—it is pricey, $1433 but if you look at it long-term, it pays off, especially if you grab it on a payment plan. While my ultimate dream is to own a Cintiq (which runs about $2,900 $0.00😲 😲),
I’m perfectly happy with what I have. Before pulling the trigger, I did some digging to see which one was best, and I figured that if you need something for professional work, Wacom is pretty much the only real way to go. I ended up ordering mine through an American tech supplier.
As for using it—it didn't take me long to get the hang of things, and now I finish every job about three times faster than I ever could with just a mouse.
My advice? If you're doing this professionally, just get a Wacom has various sizes and price points available. Yeah, it's expensive, but it's worth it.
If you want to dive deeper into the details, here are the links to the Wacom pages:
http://www.wacom-europe.com/uk/index.asp