http://www.rei.com/product/750565
This is what I have at the moment. They were 25$ at REI.
The front light is bright enough to see with and to be seen with, and the way it attaches to the handlebars is great. It is tight enough, and it takes literaly, like 2 seconds to remove.
The cuberider in back is bright anough, and has the blinking option which is nice, but i dont really like the attaching method. There are rubber rings that im afraid will break/fall off. While i havn't had any problems yet, ill probably just get some good ol' duct tape and mount it using that
overall, a great buy!