This is somewhat on topic. I've been looking at getting a commercial drone license. The FAA changed the regulations about 6 months ago, July I believe. You only need a license if you plan on making money with your drone or as a pilot. An average hobbyist won't need a license, just follow the drones FAA registration if it has one. The FAA is very specific about the language on this. They're currently suing a Brainerd, MN man for $55,000 for allegedly selling aerial photos of an empty field with a message plowed into it with a tractor. He's failed to provide his Part 107 license.
However, getting licensed costs a grand total of $155. You'll have to pass an FAA Part 107 knowledge test, as well as a TSA Background Security Check. Note: This security check cannot be obtained from the same place you need TSA screening for airline QuickCheck. I asked the TSA and the only way to get the Part 107 background check is to complete the 60 question knowledge test, of which you can miss like..18 questions, but I believe you still have to pay the $155 to take the test.
The security disqualifiers are listed on TSA's site, of interest is that a drug conviction will not bar you from a license unless the charge came tagged with intent to manufacture and/or distribution. Simple, non-felony, possession or stays of imposition/adjudication aren't specific to the statute's language. Testing centers are all over. My closest one is a couple miles away at the local airport. I need only to call for an appointment after I study.
I have a hardware/software package in mind for a development drone. It's everything I've come across reading over the last week or so. Now.. to get a small drone to smash a few times before trying the heavy lift big boys, lol. Just thought I'd share.