Ephedrine is actually very useful, and not very harmful unless your an idiot. Ephedra was the one that was banned, NOT Ephedrine.
You can find a lot of stuff online pretty cheap, and it would definately be a lot cheaper than buying it locally. Try froogle.
and yes, Ephedrine is legal to import into the u.s., while Ephedra is not. There is a fbi "watch list" though if you order anything more than like 4 or 5 bottles a month, as some retards use this stuff to cook up crystal meth. Then again, if you go through 5 bottles a month, you're probably gonna kill yourself anyways.
EDIT: Btw, while the aspirin definately does increase the efficiency of the stack, there has been a lot of evidence suggesting that the aspirin will fvck up your liver if you consistently dose with it. IMHO, it would be wiser to spend a extra week cutting down, and skip the aspirin part of it. I'd rather be a little bit chubbier than burn a hole directly through my liver. My .02