@tangent I hear you on the importance of short range (ie my stuff) but I've seen the thieves zigzag driveways and skip my place. Plus, generally I just like seeing who is staggering around at 2am. Sometimes they're quite comical. The last holiday weekend there was a bunch of late night foot traffic, including one drunk guy I noticed staggering down the road on my upper driveway cam. By the time he made it to my lower driveway cam he had his belt undone and was on my neighbour's lawn and apparently needed to drain the main vein. For some reason he didn't stop but kept going unzipped and belt undone. I never did find out if he relieved himself while walking or chose another neighbour's lawn to water. I'm more seriously considering a driveway alert system now that someone on here mentioned running the base station on an outlet timer. That's a cheap simple way to have it only fire off between, say, 11pm and 5am. Otherwise it'd go off every time my paper was delivered at 5:30-6:00am. Deer would still set it off but I don't see them as much in the summer/fall/early winter as I do late winter and spring. It wouldn't take too many 3am deer alerts between thieves testing my usually locked door handles before it'd get unplugged.
@nayr good idea on the reflector PE sensor models and putting one or maybe both halfway, but halfway is still out in the snow zone and the other end would have to be well across the street on my neighbour's lawn. My neighbours know I have cams but I don't think they'd appreciate knowing I was counting everything that went by with sensors. Seems to me that we got about 20' of snow two winters ago so winter planning is important as well. Something idiotproof and maintenance/shovelling free mounted on my house is good rather than a few things out in winter's no man's land. They're a good price at $43 each, particularly if they don't false for weather like snow. I do like how they're $43.34 each or 2 for $94.95 for two. It's a bulk sale for those who're bad at math.
They would be good for a couple of places at work for driveway monitoring. As far as PTZ integration goes, I've just got a cheap Huisun at the moment which I don't think integrates well with external alarms. Fun to look around on but not a serious automated PTZ weapon.