HOT-ROX is pretty good in my experience. I hear VPX Meltdown is pretty solid, though I haven't tried it.
You can also just go with plain old EC- ephedrine HCl is available OTC at pharmacies (asthma medication), you'll just have to sign something saying you won't use it to make meth when you buy it lol.
EDIT: Some brand names for ephedrine HCl are Vasopro and Primatene- they also have generics. Or you could go with Bronkaid for ephedrine sulfate.