I browsed the net for hours. Eventually found the cheapest place for the screen I wanted (Philips 170B4MG) was PCWorld! (£340). Delighted with it. It has a pivot function, so it can be used in portrait mode. I find this really useful. To find the one you like, you really need to see them in action. Basically everybody who has any TFT seems very happy! Do a search on this site for lots of opinions.