Get one of these puppies:
http://www.ebay.co.uk/itm/Hot-120A-E...8AAOSwjVVV29pN
I can only speak from my own personal experience with one, soon as I got it I flashed the official Hobbywing MOD firmware, its a Hobbywing 2.1 copy/rebrand/whatever but the PC software sees it as a real one so allows the real software to be flashed. It's been in my 4WD with a 6.5T motor all this year and hasnt missed a beat, even survived a race when the fan stopped in the peak of summer on a very hot day.
Maybe I was lucky and got a good one, I'd imagine the QC isnt going to be great but I know a few people who bought real Hobbywing 2.1's and they've either stopped working shortly or dead on arrival so even they're not perfect.