this question is probably very much treading the line of acceptable discussion but in brief, the answer is yes, i know personally of several reputable overseas suppliers (UK-based) that will ship to the US, no problem, and even one domestic supplier within the US that is excellent (but i'm not telling, sorry).
edit: for overseas suppliers, you need to check what you're ordering, most of them (and certainly the most reputable) will not ship stuff to the US that they know is not legal here (e.g. AMT, synth noids, etc). stuff like etizolam, pyrazolam, 5-APB, 6-APB, MXE and 5-MeO-DALT should be OK (unless your state laws say otherwise) and you shouldn't have any issues.