Probably depends upon if you bring 120hz 3D into the equation or not. Not sure if single-link 120hz 1920x1080 is possible or not. My guess this is why we see a bunch of 720p DLP 3D ready projectors on the market but no 1080p ones yet.
I'm using these on my EyeFintiy 6 card and my 1920x1200 Samsung 245BW's: http://www.newegg.com/Product/Product.aspx?Item=N82E16815309008
All those adapters are the same OEM (Bizlink). They just slap different manufacturer labels on them. That Accell one is the same as the Powercolor. What is confusing though is the video cards ship with two passive DP single-link adapters that look almost the same. Check the bottom of the adapter for the DP logo. The active one will say DP Active, while the passive will just show the DP logo. Make sure not to mix then up.