If you have Amazon Prime, it's $287.50, probably the best bang for buck you'll get with a 27 inch monitor. http://www.amazon.com/Dell-S2715H-27-Inch-LED-Lit-Monitor/dp/B00M9B3S0W/ref=sr_1_1?ie=UTF8&qid=1427654135&sr=8-1&keywords=dell+27+monitor

I did just buy Asus 27in 2560x1440 monitors for a PC I built, and I have to say (even though it's a pretty penny) the Apple Thunderbolt monitors are the best I've ever used, soundwise, color quality, resolution, in-sync-ness with Macbook Pro. The one Thunderbolt port blows, but I found it on craigslist for 600. If you can save for a Thunderbolt monitor, I highly recommend it.