best battery/charger setup for high drain leds

i was searching for sanyo 2700's and can't find a deal on them anywhere.
i think this would be a better battery for me than the eneloops cause i'm always freshening my batteries anyways.
anyone know where i can find a deal on these, or are these even the best for what i want.
i want a high capacity under heavy drain, especially if i can get them 4 for $10 or so.
would walmarts duracell 2650s be better (not even sure mine carries them)

what's the best 4 pack aa's for around $10.
i may not mind spending a few more for the sanyo if they are the best for my fenix l2d on turbo, my mte seoul/ultrafire c2, and my digital cameras!

also, what is this charger?
La Crosse BC-900 Charger (copy and paste)
will this actually rate the batteries i own based on different discharge rates? that would be awesome! i love battery gadgets like this.
can i actually test the amperage of batteries with this thing!
how much is it?
anyone know of a good link to battery or charger info?

thanks,
jason

help!

Jason,
Wander on over to the "Flashlights and Electronics - Batteries Included" forum.
These questions are best asked there.
Ask in the correct forum, and you will be enlightened.
(Sometimes, I just kill myself... "enlightened"... hee hee. :wave: )