@RoyTellect: I'm pretty sure it's the U2711 http://accessories.ap.dell.com/sna/productdetail.aspx?c=au&cs=audhs1&l=en&s=dhs&sku=210-31399&redirect=1 which is actually pretty expensive (and partially outdated).

I currently have a U2713HM at work and I would highly recommend it. Cheap(er), LED, same res, DisplayPort, USB3. http://accessories.ap.dell.com/sna/productdetail.aspx?c=au&cs=audhs1&l=en&s=dhs&sku=210-40773&redirect=1

(Thanks to Vivek Pai for heads up on this thread)