Title kind of says it already. Seeking for good tutorials on animated water in BGE for Blender 2.5 / 2.6. All sorts of things like sea water and waves on coast, waterfalls, rivers, lakes, … Underwater filters / 2D filters, maybe as well. Just everything actually. Doesn’t matter if written or video tutorials. Even if it’s in a good book that costs money, just want to learn it.
Edit: You can learn a lot from files but I prefer step by step tutorials using Blender 2.5 / 2.6 + other software like Gimp.