Connecting two DVI monitors to a MBA 2012 Can anyone tell me whether it's possible to connect two external DVI monitors to a 2012 macbook Air?

Ideally I'd like to do this through the thunderbolt connector with an adapter to drive both displays, but otherwise can anyone recommend a decent USB3 -> DVI adapter is acceptable if it's equal to or better than what I would get via thunderbolt.

I'm not watching movies or gaming on the displays, as this is just for work which consists primarily of programming so maybe a USB -> DVI adapter would be acceptable as well.
It is not officially possible to connect two external DVI monitors to a MacBook Air. Apple's support article states that you can only connect one non-Thunderbolt monitor per Thunderbolt port.

Additionally, you can look at hooking a second screen up via USB, using a product like those made by DisplayLink.