Love my dynohub powered lights. Especially the front. I use a Planet Bike Superflash on the rear rack as well, since the Lumotec rear light doesn't blink.

Frankly, I think the hub resistance (it's a Shimano) is minimal. I may have noticed it the first time I rode with the new wheel, but I don't now. Plus, it's a commuter bike anyway - I have a rack, and fenders, and stuff in the pannier - weight isn't that big of a deal. And only the most persistent DIY thief is going to steal those lights when the bike is locked up.

I do keep a white LED light in my pannier, just in case of hub light failure, but I haven't had a problem in over a year.