How about an ICE Charger or a 989. You still need a power supply, but you would need that for the astro charger too. That's what I use and it does everything, the astro only does lipo packs but the ice does nicd, lion, lipo, nimh, motor breakins, etc. I use it on my 8000mah lipo's at 8amps and it charges in one hour.

I was going to get the scorpion charger that says it can charge at 2C but that would mean charging the packs at 16amps and the Scorpion only goes up to 10amps? That's seems like they have a good marketing to me. Most people wouldn 't notice that 10amps is the max on that charger.