Specularity, from my research in blitz 3d, can be done by:
Creating a map showing which parts you want to be shiney (White pixels) and which parts you want to be non shiney (Black pixels)
Creating a cubemap or sphere map to give the shiney moving map.
And having a normal detail texture map.
Apply the detail map on layer 0,
Apply the shiney map (or specularity map whatever you want to call it)
Apply the cubemap.
That should work. I may have mixed up the order, but those are the three maps you need.
For two different lights, you need a seperate cubemapped normalmap. I don't know if you've seen the normal mapped cubemaps before? It's the only way to get normalmap to work on animated entities properly, and IMO, the best way to do normalmapping on convex types meshes.
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