You mean the A47, past Kings' Lynn? A11 would be a weird way to go (you'd have to go down the A1(M) to the A14, then back up on the A11 at Newmarket). Bleugh!
On the A1122, once you get past the crap at Thorney (though they've nearly finished their much-needed bypass, thank god), there's some b-r-i-lliant roads down near Nordelph, Downham Market itself and Marham. Really engaging to drive on and usually empty - though passing isn't a problem.
i've been looking at the picture and there doesn't seem to be a socket for the yellow video plug on the slim ps2's av3 wire thingy (you know what i mean). is that a problem?