Antaran-
There may already be a feature request about this over at DAZ. There was some debate in the DAZ forums a few months back; strangely there didn't seem to be much interest in specular lights; everybody was blabbering on about cloth simulators and fluids solvers when it came to "must-have" features :)
If you open up a request let me know; I'm part of quite a few Carrara groups and I'll definitely spread the word!