Dell has released a quartet of cheaper priced monitors from 20 to 23 inches. The monitors are called ST2320L, ST2220L, ST2220M and IN2020M and are available from Dell now.
Dell ST2320L, ST2220L, ST2220M and IN2020M
Dell has released four new inexpensive monitors, all with LED backlight and TN panels.
The ST2320L is a 23 inch model with 1920x1080 panel and Edge LED backlight. It also has a 5 ms response time and anti-reflective coating. It offers both DVI and HDMI.

Dell ST2320L
The ST220M and ST220L are 22 inch monitors with similar specs to the ST2320L. The only difference is that ST2220L has HDMI and ST2220M doesn’t.

Dell IN2020M
IN2020M is a 20 inch model with 1600x900 resolution and Edge LED backlight. It comes without HDMI but with DVI and D-SUB (VGA).
All monitors – except ST2220L – are online at Dell now. Check out the price and specs on the ST2320L on the US Dell site here and the UK Dell site here.