Andy,
I'll give you some tips on what to look for since I'm so far away from you. What you need to look for in your search for a PDR tech is experience, experience, experience(did I say experience?). Dealerships typically won't give up who they are using and the best place to start is your phone book under Dent as the first part of the name. Even big dent removal companies have newbies, so ask a ton of questions, because the end result varies from person to person. Remember, dents don't just pop out and if you chose the wrong person, you may end up with a pizza looking area that might send you straight to the body shop(Believe me, I see this all the time). You'll want to ask how long the tech has been doing this and if he/they can offer a 100% guarantee. You'll want to hear stuff like this; Sure, I'll be able to fix that dent and you won't be able to see it, ever. I myself work on customers cars, just like they were my own. Absolutely, no problem in fixing that dent, no worries. If you hear excuses from the begining like this; Yeah, I can make that look much better or most people won't see it. Then I suggest you run away, very fast. Accept nothing but perfection! Just look hard enough and you'll find it.
Take care and good luck,
John
PS, Most of the time, the criteria for fixing a dent using the PDR(paintless dent removal) method goes something like this: Dents the size of a baseball and smaller, as long as they are not thru a body line or close to an edge fall under the fixable range using PDR. Typically, these dents are caused by a ball, door or shopping cart hitting your car versus you hitting something or someone hitting you.