I had a cateye led head light that cost about 30 bucks. Unsatisfied, I purchased a cygolite milion 200 for about 100 bucks. I know it costs a bit more but the amount of light it puts out is well worth is especially since avoiding things like potholes and such is a lot easier. I purchased mine at REI. REI - Gear, Equipment and Clothing for a Lifetime of Outdoor Adventure and Stewardship.
There are many lights like this that put out the same amount of light for 300 bucks. This one can be rechared through your laptop via the usb port. Personally, I think it is a great purchase.