Dell Business has the Dell UltraSharp U2412M 24" 1920 x 1200 IPS LED LCD Monitor for $370 - $120 off with coupon code VRK785QMF?V1T4 [Exp 12/14] = $250 with free shipping. Goes for $274+ everywhere else.
1920 x 1200, 16:10 aspect ratio, 300 cd/m2 brightness
IPS panel, 8ms response time, 1000:1 native contrast ratio
Dell Outlet has the refurbished Dell UltraSharp U2913WM 21:9 29" Ultra-Wide LED Monitor on sale for $349 - 20% off with coupon code XZZZH20C00?RLV [Exp 12/16] = $279 with free shipping. Click "Check Prices - Monitors" on the left and sort by "Price- high to low". Features a height-adjustable stand, tilt and swivel. If you're looking to expand your workspace with a single monitor, this is it.
2560 x 1080, 21:9 aspect ratio, 2mm:1 dynamic contrast
LED backlit matte, 8ms response, 300 cd/m2 brightness
Dell Business has the new Dell U2414H UltraSharp 1080p 24" IPS LED Monitor for $270 with free shipping. Features a thin 6.05mm border, tilt and height adjjustments and ultra-wide 178° viewing angle. DisplayPort MST and four USB 3.0 outputs.
1920 x 1080p, 2M:1 Dynamic Contrast Ratio, 8ms response
250 cd/m2 brightness, VESA compatible, HDMI MHL + DisplayPort
Ends tomorrow at 4AM PT. Dell Business has the Dell Ultrasharp U2713H 27" AH-IPS LED Monitor with PremierColor for $1000 - $300 off with coupon code 7CGVJNP4$32V43 [Exp 12/15] = $700 with free shipping. This is the true successor to the professional-grade U2711, featuring 10-bit color support (8-bit + FRC panel) and GB-LED backlighting. If you don't need those features, the cheaper UltraSharp U2713HM is directed at mainstream users.
Dell has the Dell UltraSharp U2413 24" 1920 x 1200 IPS LED LCD Monitor for $600 - $220 off with coupon code $PWG5126T786W? [Exp 12/6] = $380 with free shipping. Found for $450+ elsewhere. Many connections including DVI-D, DisplayPort, Mini DisplayPort, HDMI and four USB 3.0 ports. Here's CNET's review of this successor to the UltraSharp U2412M.
1920 x 1200, 16:10 aspect ratio, 350 cd/m2 brightness
AH-IPS panel, 6ms response time, 1000:1 native contrast ratio
Dell has the Dell UltraSharp U2312HM 23" 1920x1080 IPS LED LCD Monitor for $161 with free shipping. This discount requires Dell Advantage membership (free for anyone to join) or Member Purchase Program (MPP). Check if your employer, school or organization participates. At checkout, enter company name or member ID.
Rakuten.com Shopping with US Micro Corp has the refurbished Dell 24" UltraSharp U2410 Widescreen LCD Monitor for $200 with free shipping. Uses an H-IPS panel for better color reproduction and viewing angles.