there are a few places that have those ac or dc 5amp chargers for like 50 bucks. I picked one up as a second charger works like a charm for packs that only take a 1c charge. They go by many names, and different companies, but I am sure they are all the same on the inside.
The Monster has a decent 8amp dc charger for about the same, and a 50 dollar power supply that will support it.