I agree with Neil. For that budget, the U2410 is hard to beat. Proper 16:10 ratio, 1920x1200, decent LG IPS panel, great connectivity, and if you have no calibrator, comes fairly decently set up too.
My only complaint is the anti-glare coating is a bit aggressive, and can appear to "sparkle" in bright areas as you move your head around. A small price to pay for a great screen though.