Just ordered this display from Amazon for $999. There is no delivery estimate yet, but I hope sometime next week! That's wishful thinking though.
Another thing I purchased specifically to use with this display is a Sanus VMD1-B1, and the only place I could order online seemed to be the Apple store. Here is a link the manufacturer's product page:
This is a vesa mount that clamps to the desk and seems to have the widest range of motion from the all the mounts I looked at. The only potential issue is that while the weight of the LG display is well within the supported weight of the VMD1-B1, the specs say it only supports displays under 30". I expect the weight is the important thing, but if it turns out this display doesn't work with this mount I'll post an update (either way I'm sure pics will be posted).