What are you guys using for your flashes? I'm tired of buying Alkalines, and think it would be cheaper in the long run to go rechargeables.

I'm looking at the Sanyo Eneloops due to their low discharge rate. I don't use my flash often, so this would be handy.

If someone can recommend a good charger, I'd appreciate it. I'm currently looking at the LaCrosse BC900, Maha C204W and Maha C401FS.

What do you guys think?