I ordered a new Intuos4 and was going to eBay my old tablet but thought I may as well offer it here first. The tablet is in good shape and didn't receive much use over the first three years of its life (bought it in 2006, I think).
The battery life appears to be good. I used it for about eight hours the other day and it was still working fine. I have the pen, mouse, pen stand, and charger.
I figure $105 with shipping (continental US) is fair if anyone wants it. PM me if you're interested.
Here are the specs: