There are a few things you could try to work on shininess. There are three shader maps involved with this effects:
- env.dds
- env_mask.dds
- spec.dds
The last two are similar. They are both greyscaled - the brighter something is, the stronger is the effect the shader maps creates on that part. One of the two files gives a rather metallic effect, the other one gives a look like a billard ball. I don't have in mind which of the two files controls which effect though. Thus, increase brightness of the parts you'd like to have more shiny.
The env map is basically seems to represent the sort of light that gets reflected. This is about the reflected lights colour, but also about its strength. Normally, the premade env.dds files that show a silver dot, are very well for eyes, but not too good for metallic effects. Ekmeks Attila contains a pretty good env map for metallic effects. Try the map Attilas helmet uses. If you don't like the colouring, turn it greyscaled. This can massively affect the brightness, too.
Alternatively, you could work on the lights. Sceneviewer was useful for that. Start Sceneviewer from where it is installed to - that means either make a shortcut to there and use that or via explorer, browse to there and execute it. Do not double click on the nif file or right click at it and then choose open with as then, Sceneviewer doesn't handle the shader effects correctly. Now, browse the tree on the right to find some lights. Right click at them and from there on, you'll find your way on you own. Some lights have a strong influence, other only a weak one, so you'll need to play with them a little. However, Sceneviewer will give you a pretty good preview IMO (and is therefor also valuable when you work on the shader maps). As you might know, sceneviewer adds another node on top of the nif everytime you save it. If you ask me, you should nifswap the lights at the end, otherwise you'll soon add a bunch of needless and annoying nodes. Some users, btw, don't get sceneviewer to work. Nitram for example. I bet this was due to his ATI graphics card.
EDIT: Maybe The Capo is related to Al Capone?