Attached Link: http://www.renderosity.com/mod/gallery/index.php?image_id=580742

The "Fake Fresnel" component of  "Shader Ops" by DCG is exactly what the original post is asking for. The beauty of Fake Fresnel is that you have complete control over both shader components and their intensity and falloff. This allows you to enhance the effect of true Fresnel to your liking. It also works in many different channels, transparency, reflectivity, etc.

Here's a link to an image I did way back in Carrara 3. The water uses Fake Fresnel in the reflection and transparency components of the shader. The water gets more reflective as it gets further away and more transparent as it gets closer, because of the angle to the camera.