Update: As noted in the forum, this model PROBABLY doesn't have DVI although Amazon states it does.
This Acer 20" AL2016WS Widescreen LCD TFT Monitor is £236 including Free SuperSaver Delivery from Amazon.Co.UK. It has some decent looking features, such as the screen resolution of 1680 x 1050 and response time of just 8ms...
Features: High contrast ratio of 800:1 * Ultra brightness of 300 cd/m2 * Advanced CrystalBrite technology * High powered resolution of 1680 x 1050 * Ultra-wide viewing angles of 160° * Equipped with the digital (DVI) and AV interfaces * Accelerated 8ms response rate * 20 Widescreen PC monitor
Includes: Acer monitor * All European, UK & Swiss Power Cables * RCA Analogue cable * DVI cable * SCART cable, S-Video and Composite Cables * Manuals