Tiny, shiny, evil root buggers! ID help!

[theloyalplum]

So, I've been having a problem of sorts recently. Ever since I got my last order, my windowsill has become filled with these tiny, shiny, evil (yet to be determined, but guilty until proven innocent) root buggers. I grow inside, so everything is sanitized and quarantined before being sent into general population, but somehow ALL my orchids have become home to the little things! A little more on the buggers, they are quick and like to stay in the root zone and media (bark and sphag mostly). From what I've seen, they've not done great damage like scales and mealy's do... yet. They're fast, orange-black and don't mind humidity so maybe not spider mites.

tl;dr:
What are they?
Are they friend or foe?
What is the best way to control them?
Photo's linked below!




Help, please! For the sake of the 'chids!