This is not the first time a USB to DVI adapter had come down the pipeline, but the new Gefen adapter can drive an impressive 6 additional displays at 1600X1200 resolution. It is not great for larger monitors by any means, but at only $129 it could be a relatively inexpensive solution. Gefen also notes that it "uses little computer resources" which means that there is at least a chance that this thing won't be a huge processor suck. Additional images after the break.

[Gefen]