got mine from mendmeshop:
http://shop.mendmeshop.com/product_info.php?products_id=32they are in canada somewhere, but look like they ship all over the world.
i bought this one because:
the tech support over the phone seemed knowledgeable
60 day money back guarantee
1 MHz (which is what the PT uses, goes deep into tissue, compared to the 3 MHz which is more superficial)
3 power settings (low, medium, high, but all 3 pretty low: .1-.3 W/cm2, .3-.5 W/cm2, .5-.8 W/cm2, my PT uses .6 W/cm2 for everything, and the fact that this machine does same power made it win over a similar machine that did around 2.4 W/cm2)
the only negative is that it is pulsed (which makes it safer to not burn tissue) instead of the continuous that the PT uses (but you'd have to be careful and know what you were doing to use). i want to be as close to what PT is doing as possible, but i think the pulsed will be ok after using it today, just not quite as powerful this way, but being able to do it everyday will help make up the difference.
it was $250 (U.S.) which is more expensive than some really cheap machines under $100 so figured its probably a little better made.
