Ask a question that hasn't been asked a 1,000 times before and see what ya get :)

Bump and displacement are right up the list of common questions. It doesnt help that different applications deal with them a bit differently. I use lightwave and the bump maps are inverted. :(

Some of whats been discussed is how you can adjust the 0 point for maps, and get better control over the scale and direction of the displacements. You dont need to worry about that if you just want a single direction change.