And They Say Size Isn't Everything

24 Inches but I don't use it as a rule, which is true for my new monitor it's a Dell 2407 WFP and I just got it today. The screen is enormous at the moment but I am sure that I will get used to it, especially all of the extra desktop space with the 1900x1200 resolution. It does all of the usual things like twists through 90 degrees but the most amazing part is when you view an excel spreadsheet on it the colums go from A -AA!!!
Glasses due to arrive soon - but not sure if I need them now...