High guys, been a really long time. Wanted to weigh in on this topic as I recently picked up a Wacom Intuos 3 4x6 refurbished and was stunned at how well it works after getting used to an Intous 3 9x12. I got the 4x6 to accompany the MacBook that I was never able to buy. (I no longer have a job. So it goes...) The 4x6 is the one I plug in now. I suppose that's a good thing as I'll have to sell the 9x12 soon anyway...
Here's a great place to shop for these things, I got both of mine there. (and both were refurbished so if your budget is tight.)
By the By, I couldn't get a laptop but did get a new iMac last summer so I'm a really happy guy, both artistically and musicaly, and now without a job I have time to play!!!.
"Up to now I've managed, but since they know I can't do any other kind of work in life except invent absurdities, they pay me badly." Rene Daumal (Trans. Roger Shattuck) from "Mount Analogue"