Amazon has Asus PB258Q 25" WQHD 2560x1440 IPS LED Monitor w/ Built-In Speakers on sale for $264.99. Shipping is free.

Newegg also has Asus PB258Q 25" WQHD 2560x1440 IPS LED Monitor w/ Built-In Speakers on sale for $264.99. Shipping is free w/ Shoprunner or Newegg Premier, otherwise shipping is $0.99.

Note, if you don't have Newegg Premier, you may sign up for a free 3-Month membership [more details]. If you don't have Shoprunner, there's a free 30-day trial with free 2-day shipping

Specs:

• Resolution: 2560x1440
• Response Time: 5ms
• Contrast Ratio: 100,000,000:1
• Viewing Angles: 178° H / 178° V
• Panel Type: AH-IPS
• Built-In Stereo Speakers
• Inputs:
  • 2x DVI
  • 1x DisplayPort
  • 1x HDMI w/ MHL 2.0
  • 1x VGA (D-Sub)