I have two comments from my experience as a police detective.
1. First and foremost, your video clarity is without question enough for the police to ID this guy. They're not going to be simply picking someone out of random. A vast majority of crimes are committed by the same set of ass holes, time and time again. This isn't this long-haired pretty boy's first rodeo. Chances are that he's done a bunch of similar stuff before and is well known to your local cops. Just hope that it ends up on the desk of someone good and not a "zero" (this is a police term for a do-nothing).
2. Second, with respect, people who suggest adding IR illuminators have likely not been to court in support of video obtained by an install they have done.
I was in court EIGHT times last year in support of camera footage involving theft from a vehicle. Even if he has a public defender, the perp's attorney is likely going to request adjournment after adjournment, hoping that you no-show, allowing him to get the case dropped. Even if the police do find the right guy, he has likely sold your property already. You may get a conviction--and restitution--but it's going to cost you far more in days off of work to go to court. I've seen this countless times--both as a cop and an installer.
You want to take every opportunity to create deterrence. This means highly visible cameras and signs "this property is under video surveillance" (get a solar powered landscape light to illuminate one of them on the walk up the driveway). Finally, you want VISIBLE LIGHT, not invisible IR. I've seen 500W halogens turn a perp around in his tracks many a time.
The suggestion of IR illuminators is a common one, that drives me absolutely nuts. If you are adding IR illuminators, it's a tacit admission that the property you are trying to secure is dark enough to be inviting to criminals. Unlike motion lights, which also serve the primary function of deterrence, IR illuminators only help you capture video of crimes that have already occurred. Have fun spending 5x the value of the stolen item in court to secure a conviction--then getting $20/mo for the next to years to replace your phone.
The only time I would consider installing IR illuminators is when employing an LPF (low pass filter) camera in a setup specific to capture license plates at night. They basically have no other use in a well-designed security system. If you need additional IR illumination (or any IR at all), the problem in your security planning is lighting, not cameras.
