Thanks again for the advice. In the end I didn't go for the Acer or the Xerox, but for the similarly priced Belinea 10 19 20.
So far I'm really happy with it. It cost £246 including delivery. I really didn't want an lcd screen and was unhappy with their quality because of their bad viewing angles and poor contrast, but the Belinea 10 19 20 seems to be comparatively excellent on those fronts.
I was a bit concerned that the Belinea 10 19 20, despite being a PVA screen, wouldn't be a lot better viewing angle-wise than the TN monitors I saw in the shops, which were typically terrible. But it has the best viewing angles of any LCD monitor I've seen , far better than TN monitors, which tend to change in colour significantly if you so much as move your head a little. It's not perfect, the tones do shift a bit and go white especially from extreme angles, but it is a whole lot better than I was expecting. With my dad's TN monitor you can't see a thing on the screen if you're below it, on the 10 19 20 you could watch a film sitting on the floor below it.
It also is low contrast, at least as it's set up just now. It sees a lot of shadow detail, unlike my dad's 400:1 contrast ratio TN, in fact too much, at the current gamma.. I see a lot of artifacts and noise in my photos in the shadows. It has contrast similar to my brother's CRT, I'd say. It doesn't have the over-contrasty, shadow detail-less look I associate with LCDs.
I need to calibrate it somehow. The colours out of the box are not very saturated and there is no saturation control (though I boosted the saturation with the digital vibrance thing).
Anyway, I definitely recommend it. Although Belinea's hot pixel policy is terrible, mine thankfully doesn't have any (yet).