I'm in the same boat as you, finding a Juice supplier seems to be quite the challenge so far, I bought 3 test juices so far from greenhouseone with my e-cig and they tasted good, but I’ve been told not to get juice from a overseas supplier as they use some not so good chemicals in their juice, don't know if there is any truth to that but don't wanna take any risks, plus it would be nice to find a USA supplier with fast shipping times.
So far I've think I’ve narrowed it down to Goumetvapor, but not sure yet, they have literally hundreds of flavors and the prices are pretty reasonable. I’ve looked at Nhaler as well but their prices are pretty expensive in my opinion, but they seem to be the highest quality juice I’ve seen so far. everyone seems to recommend tasty vapor also but the smallest quantity they sell is 1oz, it’s a great deal but I like to buy alot of flavors at once and mix it up, I think 1oz would be just too much for me at this point.