What tablet would you buy?

I’m in the market for a tablet to make my life using the GIMP easier. I’ve looked longingly at them in stores but my credit card stayed in my wallet and I resisted the temptation! Now, I’m seriously thinking of making a purchase and wondering which one to go for.

After some initial problems Richard Querin got his Wacom Graphire3 working and I know there’s the Linux Wacom Project but they’re not the only show in town. What about other manufacturers?

As a photographer, has using a tablet helped you? Has it made it easier to work on photos? Is it easier to apply large changes like dodging and burning a whole image?

And finally, red or blue pill?