If you are on a budget, hit up Dell's Refurb website. I picked up 2 x 24" widescreens and saved $400-500...
Just a note: One monitor was perfect while the other one had a dead pixel (just lucky it was towards the edge.) Apparently they only swap out monitors if there's 5 or more dead pixels. :-/
They work fine for editing, but I wouldn't use them for any sort of color correction (at least for video).