Have you noticed the flashlight conversion units for LED? They cost about $18 for the Maglights. Seems a bit high to me.
I bought two sets of 4 LED flashlights from Target last year in their after-christmas sale. They were one of the "boxed gift" sets, normaly 20 bucks and I got them for 5 bucks each, and the kit came with ALL OF THE BATTERIES NEEDED.
This year I bought two set of three "table led lamps", again for 5 bucks each (so that's $10 for 6 table led lamps), each uses 4 AA batteries (which were not include) and they are pretty bright, would work great for general lighting in a power failure. I am going to put 4 rechargables in them and see how long the burn before the batteries die (hey, sounds like a science experiment).
It's pretty cool some of the stuff you can pick up at 75% off in these after-christmas sales. (BTW, I currently can only find 5 of my 8 flashlights -- the kit was cool the flashlights were 4 different sizes, including a 5-LED light that used D-cells (that's one of the ones I lost).