My actual monitor is a Dell P1130 21" viewable 19,7" max res. 1800x1440@85Hz, usual mode: 1024x768@ 100-150Hz, desktop 1280x1024@100Hz (it supports 100Hz till resolution 1600x1200).
This monitor has anti-glare mask, provided with Trinitron flatscreen, Dyna-flat (pow. by Sony) technology which means zero input lag and that will be done with unbuffered rendering method!
I love this monitor, it has a perfect in-depth and angle, true its only 4:3 but still can customize with a dozen of resolution modes and ratio (16:10, 16:9, 5:4: 5:3 etc) mods..:

Also I had this one also which has almost the same features with different design and implements of building up Samsung's own technology improvements (for the same Dyn-Flat based build), such as TrueLight Zone 3 and higher Hz capabilty than Dell's (at 1024x768@160Hz was supported and it had up to 200Hz at 800x600), but that had buffered rendering which made better contrast and better colours but it produced embarassing negative/positive accel to directinput, depending on actual settings and pinging of servers played on:

And had this for a long time, the 2ms gtg TFT TN+F panel had too much troubles with insight angles and red-colour contrast wasn't perfect tbh with that but with high DPI on mouse could ease and help the max 75Hz occured blurring and "hollow" frame rendering:

I played also fps games on wide TFT, but still have a comfort the must to watch a screen which has a refresh 120Hz at least... So i would offer that ones, it's an afford for its price I think, for low cost go cigane mode and get a crt from the closest cockroach or 2nd hand markets, but telling the truth should keep line with modern technics and earn a lot of place on Your desk, TFT design more fancy just keep ms low and Hz high if man looking for a TFT one