I run a DiNotte 300R on the rear right now. I like it because it is self-contained, is USB chargable, and easy to swap from bike to bike. I've considered the 400R, but that takes an external battery, and is sold as a daytime only light. Guess it is too bright for night usage. On the front, I use a NiteRider MiNewt Lumina 600. They have since discontinued that model and now sell the [strike]Lumina 650[/strike] Lumina 700 as its replacement. (Just checked the website. The highest power Lumina is now 700 lumens.) The Lumina series is also a self-contained, usb chargable light. A word of warning about NiteRider: they can't seem to design a decent handlebar mount. They are "crap". The old snap mount is too lose and moves when hitting bumps in the road, or the new screw mount scratches the paint on your handlebars with its screw. I "fixed" the problem by adding a handlebar extension and mount the light on that. It's ugly, but works. (This is with 31.8 mm bars on my various bikes.)

Manufacturer's link to the DiNotte 300R taillight.

Manufacturer's link to the DiNotte 400R daytime only taillight.

Manufacturer's link to the NiteRider Lumina 700 headlight.

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p.s. I have a NiteRider Pro 3600 DIY for nighttime riding. More than one automobile has flashed their highbeams at me because that light is so bright. Expensive, but does an awesome job, especially if you are riding in the upper-teens, or faster, in mph's.