Buying a tablet within the next couple of weeks.

I've currently got two options;

Intuos 4 Medium, which is -just- within my price range.
or.
Intuos 3 A4 which is significantly under my price limit, on that note, the Intuos 3 A3 is still £110 under what I'll pay for the Intuos 4.

It's simply a case of, is Intuos 4 worth spending the extra money on?
I've read a number of reviews online, and so far it definetely seems to be, and I'd rather buy top quality rather than now out-dated technology.

Advice? :]