I have ordered a lot of stuff from
fasttech (and they are a very popular site among folks here on ECF).
fasttech is very good about labeling originals and clones. If it says "authentic" it's a genuine. If it says "style" it's a clone.
Read the Discussions for anything you want to buy (I find these generally more helpful than the
reviews).
A lot of their stuff is very good quality (including the clones). Some of it is not. And their prices are for the most part, very good.
It can take a while to get to you, though, since it's coming from China!