Best Buy has 23" HP 23es 1920x1080p IPS LED Monitor (T3M74AA#ABA) for $99.99 - $10 when you checkout w/ Visa Checkout (discount applied automatically) = $89.99. Shipping is free, otherwise free store pickup is available if stock permits.

Note, if the Visa Checkout offer (details) isn't met after sales tax add a small filler to reach the $100 requirement.

Specs:

• Resolution: 1920x1080
• Type: IPS Panel
• Refresh Rate: 60Hz
• Contrast Ratio: 1000:1 (typical)
• Response Time: 7ms
• Viewing Angles: 178x178
• Inputs:
  • 1x HDMI
  • 1x VGA