I added some kind of LOD for the terrain and reflections for the water.
You can see it in action on youtube: http://www.youtube.com/watch?v=BlZGAGVJGAo
But please read the description wink.

Lite-C Tut. 1 Lite-C Tut. 2 Lite-C Tut. 3 (en)
Shader Tutorial (ger)

http://www.slindev.com