The Auria EQ276W 27" IPS LED monitor for $399 at microcenter.
is a good monitor. and works with mac mini 2012.
http://www.microcenter.com/product/384780/EQ276W_27_IPS_LED_Monitor
Pros:
- Cheap
- Supports 2560x1440 @ 27" 60hz
- Has DP, HDMI, DL-DVI, VGA and 2x3W Speakers.
- Has warranty iirc, and MC return/exchange/refund policy (which is awesome). If it's bad, just exchange.
Cons:
- The DisplayPort plug on the monitor is backwards. Makes it VERY HARD to remove a DP plug if you've plugged it in.
- Has a gloss coating, because of the way they did construction there is a chance dust maybe behind the coating leading to stuck like pixels.
- Panels are Grade A or A-, NOT A+. So don't expect perfection.
- Stand is terrible. But you can get a replacement from monoprice or amazon.