They all look legit, many are selective scammers though. Also customs has been known to seize, such items as clomid and nolvadex etc. Also these are source posts and not allowed.
I dont really consider these as source posts. Those pharmacy mentionned and I know some others who are legit sell legal stuff: arimidex, clomids, novaldex, viagra. The thing is how your customs will react, nobody knows.....
The meds arent' legal if you don't have a script. The 90 day rule only applies to border crossing, not mail order. Customs can seize anything they want, but as we know they usually won't grab non-scheduled meds. You can check the law for yourself: http://www.customs.gov/travel/med.htm