I've been stocking up on Eneloops for my flashes recently, and I think it's got to the point where I should really have a decent charger to replace the cheap 15 minute speed charger that came with my first set of batteries.
From what I gather, the Powerex MH-C9000 is pretty much the best you can get (along with the similar Lacrosse BC-900). I was all set to order one of these, when I came across the 8 AA chargers Powerex manufactures, like the MH-C801D. They don't have the crazy analysis and charging features of the C9000, but they have what you want in a battery charger: individual circuits, slow/trickle charging, and conditioning.
I've shot a couple of weddings, and I usually end up taking three sets of batteries for my 430EX II (12 in total). This is certainly doable with a 4 battery charger, but I also have several flashes for off-camera use, and the idea of charging 32 batteries four at a time isn't too appealing. On the other hand, I rarely use these flashes, and I'm also using low self-discharge NiMH batteries exclusively, so I would only be topping them up.
What say you, POTN? Are the C9000's extra features worth the hassle of only being able to charge four batteries at once, or should the average person just get a high quality normal charger? I have read opinions on both sides of the issue, and I'm eager to see what people here have to say.