A front generator hub is really the best option if you are serious about lighting and can afford it.

There's been plenty of discussion on this on other threads such as the long-distance thread. I notice someone posted a photo of the chronometro nob (or whatever it's called) These are a good choice for fork mounting. There are lots of options offered by Peter White, for instance.

I've got a couple of pages that touch on lighting -- here and (photo) here.. Please, no front blinkies.