Spyder arrived this morning, courtesy of Royal Mail.
Dead easy to set up and use. Printer output now matches what's on the screen pretty well. The printed image is a bit darker than the screen image, I'll have to see if there's way of reducing the screen Gamma.
But in general, great bit of kit, thoroughly recommended. It would have been nice if they'd incorporated a 'before & after' screen so that you could see what it's done, but maybe I'm asking too much.
Now, I expect you all to dip into your 'New Lens' kitty and snap one of these things up