Only AaG's WIP looks comparable to these videos. Now I'm talking about a large body of water like in these videos not a steam or current like in Whiterun near the big tree (With Realistic water textures added, 1.5V).
http://www.youtube.com/watch?v=9NX-MvnYUEs
(SKIP TO 30 seconds and 1:30 to SEE what I mean)
Video 2
(SKIP to 5 MIN to see light to surface reflections is still better)
http://www.youtube.com/watch?v=uhuHaNX93_s&annotation_id=annotation_723879&hd=1&src_vid=9NX-MvnYUEs&feature=iv