Well at first glance your wishes would not both be possible in one light, but fortunately times have changed.

A high power flashlight wouldn't have a long battery life and a flashlight with long battery life wouldn't be that bright.

Check out this Browning flashlight. You can find some super deals on them in the light/knife combo they sell. I think they were 39 or 49 bucks when I last saw them. I have this.........

http://www.browning.com/products/catalog/lites/detail.asp?value=013H&cat_id=371&type_id=5 26

For super bright I got this one, too..........

http://www.browning.com/products/catalog/lites/detail.asp?value=H&cat_id=371&type_id=519

Another one to consider, if you will go all LED is this one (yes I have this one too). It is very, very bright LED or not.....

http://www.browning.com/products/catalog/lites/detail.asp?value=H&cat_id=371&type_id=513


One other item I will add aboutthese newer types of lights that take the 3V batteries. The batteries, when they die, die VERY QUICKLY! I can't tell you how many guys I've seen that think the bulb burned out, got a new bulb and nothing - dead batteries. Always keep spares handy.