Hi Fella.
If you want to be really future proof you need a charger that can do Lipo as well as NIMH. I just bought this one :
http://www.ripmax.com/item.asp?itemi...0&Category=070
It is reasonably priced and has mains and 12 capability.
I'm guessing the ZX5 that you have seen is mine, I can assure you it's mint, it will be like a totally new car once the KM conversion fitted. if your interested i've got an Eagle CDC charger that is both mains and 12V that is nice (no lipo ability though), and also I have quite a few sets of 3300GP's you may be interested in as well as the ZX5 !