I considered it worth the cost to upgrade to the Super Battery. I've had the same battery for years, and it still holds a normal charge, going variously through periods of disuse and heavy use. It is also supposed to give more flashes per charge, but I haven't tested that. You also need the current model Delta V charger.
If you don't always need to be on battery power, you might also consider looking for one of the compact packs for the Norman portable heads. These are usually cheap second hand. I have a 202 pack that I just keep on my copy stand, where I've got a pair of LH-2 heads with the small Norman octaboxes.
Those octaboxes are also great for portable use. You can even use one on a flash head mounted on a high bracket over the camera. They set up very quickly like an umbrella and fold compactly, but the quality of light is like an extra-small softbox with the diffuser or a 19" round reflector if you take off the diffuser.--
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