As FF said, the best "Bright Lights" on the market are custom built lights.
You can either resort to paying for one or building your own.
Paying for one will cost more than just pocket change.
Building your own, using a flashlight body you already have, is relatively cheap.
You must have some knowledge of electronics before you go frying LEDs.
Those LED bulbs are 10 bucks each on average, after shipping.
The other advantage to building your own is the variety of lights you can make.
A buddy of mine has a light that is able to swap LEDs at a whim.
This comes in handy for if he wants to use a green light LED, red, or white.
The green is still 3W and very bright, but animals seem to not understand what it is when they see it.
It's so bright that to them its probably just an odd bright "grey" spot.
Some animals have walked toward it to see what it is. Others have just ignored it after a few seconds.
Although they can't see color, I recon to them it's the same as florescent is to us.
Something they almost never see, and seems to blend into surroundings if its a small dot.
http://www.dealextreme.com/products.dx/category.917
http://www.theledlight.com/
http://www.candlepowerforums.com/
I have a 6W Dorcy we sell that I'm converting to drive a new CREE.
Gonna cost me 22 bucks to more than double its light output.
Oh, and if you use it for hunting, be SURE and refrain from looking at the light source.
It will leave a blind spot on your eye for far longer than you want it.