Looking through the shop you posted the one I'd get is the Core-RC UAC50
(this one
http://www.jespares.com/electric-models?page=shop.product_details&flypage=flypage.t pl&product_id=11737&category_id=486)
This will charge pretty much anything and will run off mains power too so you don't need a separate 12V power supply.
It will also balance charge lipos if you're thinking of getting them soon.