David/Cheapo,
One does not need to be a modder per se, to take advantage of the modularity/interchangeability of the McGizmo Aleph series of lights, which are also compatible with the SureFire E series of lights.
As was mentioned to your brothers Surefire_Rocks and Cornkid, you can go to the McGizmo forum on the CPF, and check out the FAQ sections on those lights. If after that you still have questions, I am certain people would be able to guide you from there.
Hope that helps,
John