I have two chargers: cheap Kodak and cheap Pearstone. They work fine with my 3 kinds of batteries: Kodak (2100 mAH), Pearstone (2900 mAh), Energizer (2450 mAh). You can use any charger you want. The Pearstone charger at least tells me when the batteries are charged and then stops zapping them.
I usually charge with both chargers, then when the batteries in the Pearstone are charged, I switch the other batteries into it because of its indicator LEDs.
Sanyo eneloops are 2100 mAh, right? Even if the Energizer lose 10% right out of the charger, maybe they still have more to give than eneloops. Anyways, I'm not sold on following the herd with eneloops. I think almost all name brand batteries are made in the same factory outside of Shanghai.