headlights i've come to enjoy: Planet Bike (PB) Blaze 2W and 1W. The 2W is stunning, literally. The 1W about 95% as stunning, and a slightly longer run time.
tail lights: PB Superflash is fine. Blackburn Mars 4.0 is even better.
don't cheap out on lights. would you buy a car with useless/dim headlights or tail lights? well,... you'll be riding the same roads, so be seen and stay alive.