Ari, I'm assuming they do not want to use Bootcamp and prefer to specifically work from the Mac OS? My main computer is a MacPro and run a Bootcamp partition for anything that is Windows only. I am new to security technology however later in the year after getting a better understanding, I plan to test Bootcamp with surveillance cams.
Having a Mac, I want to jump into things right away and do a little testing. I plan to get Security Spy very soon and test. It seems some cameras work a lot better than others and now researching what would be a good camera to meet my needs. Did you see the recommended supported camera list and look at Bensoftware forums? I was considering a few high MP ACTi cams, but read in the forums that several of the ACTi E series cams had compatability problems. One problem is ACTi H.264 encoding didn't work with quicktime on thier Mac and as a result only used JPEG encoding. Even though the cam fit the Security Spys ONVIF compliant requirement, some (possibly PTZ only E series) had some glitches. Company support on the forum appears to be good for the posts I saw. I'm going to do a bit more research into cams and narrow down several to consider.
Also important to consider when using this software is number of cameras needed and computer processor. They have a nice System Requirement Calculator on the site. I'm using a beefed up (although single, quad core, processor) 2009 Mac Pro tower. Dual processor Pre 2014 Mac Pros are now very affordable. These could make a nice platform for anyone looking at using Security Spy.
Nice to hear about Dcomplex and Xeoma...and will check those out as well.
DComplex and Xeoma both support recording on a MAC. They both say they support PTZs but I have no idea how well or with which PTZs.