More Bump Mapping woes

One item I was previously missing in the equation was adding a set of texture coordinates for the second texture unit.  But, even after correcting this the bump mapping still doesn't appear as desired.

From what I've continued to research after trying several methods is that I may be missing a tangent space vertex light calculation that I didn't think was necessary for Dot3 bump mapping.  As you can see in the screenshot below, specular light is included in the scene, but is not shown on the water.  Also, detail in the original texture appears to be lost and just replaced by the bumps in the normal map.. rather than being combined.

Still the best result is without using bump mapping:

Depending on how much time I have over the break I may take a look at rendering a bump map using a GLSL shader instead of Dot3. Otherwise, I think it's about time to move onto smoke simulation since I'm reasonably happy with the texture output and appearance for water so far.

Other benefits of GLSL include..:
-More straightforward bump mapping/maybe easier to debug
-Easier reflection mapping onto water
-Easy to add a cosine function for 3D waves and/or Perlin noise