Jeez, I feel like a broken record....
I got mites a while back, and found the FAQ on ProExotics, did some research, and decided to go with their Black Knight product. It took a couple of weeks and a lot of hard work and constant vigilance, but IT WORKED!
I truly believe that their strategy of "you truly need to overreact to the situation to deal with it completely and effectively" is the best way to go. Just like with fleas, flies, or ants, if you don't attack the problem from EVERY angle, it will reoccur with a vengeance. Arthropods have no concept of "taking a hint", so you have to ERADICATE them.
To quote the FAQ:
"You have to go all the way with your treatment, breaking down an entire wall, a whole room, or even an entire collection, because if you don’t, if you clean five cages well, but miss that sixth cage with fresh mite eggs (due to hatch in a couple of weeks), you are risking the entire collection becoming infected, and for a large breeder, that can mean hundreds or thousands of mite infested snakes.
"If we find that one lonely mite (be assured there are already others you don’t see), then we break down the entire section. If you find a few mites, in a few cages, in a single room, then you have to do the entire room. If there are hundreds of mites in many cages, you really are best off doing the entire collection. If you have only a handful of cages, perhaps a dozen, you are going to be better off doing the whole collection in response to even that single mite, because believe me, you will kick yourself in two weeks when the two hours you saved today turn into another 10 hours of work then.
"Reptile mites are tiny creatures, but they are active, and they can travel up to 48 feet in an hour. That is a long way, and can cross a LOT of cages. When I insist on being extremely thorough with our attack, it isn’t a joke, and it isn’t fun, it is a serious response to a potentially disastrous situation."
Overreacting to arthropod infestation is a strategy that has always worked well for me. I keep my desk at work scrupulously clean and spray the perimiter with RAID. So, when the ANTS invade, my desk is not overrun like my cubicle neighbors who leave food crumbs around as enticements for the nasty buggers. My fellow cube-jockeys tease me because I'm constantly cleaning my desk, but the teasing goes the other way when those Argentine invaders take over the office (as they do every summer), and my desk is an island of insect-free serenity. 
I occasinally snake-sit for friends, but I don't want to risk infection. Guests to my zoo stay in a separate room, and I wash my hands between handling them and my residents/inmates. I learned this from talking to other keepers, who quarantine new arrivals until they're sure that no problems exist. Better safe than sorry.
No, I am not an employee of ProExotics, just a very happy (and mite-free!) customer. 
!Pitr
FAQ: Get Rid of Mites
-----
2.0 Ball Pythons
2.0 Bettas
1.1 Pekingeses
1.4 Rats (for breeding)
1.0 Mouse (for scenting rat pinkies)