Ok quick update since I got around to installing these today, software from Samsung is a pile of rubbish, perhaps I am used to how DVRs operate but nothing appears logical, stuff is just all over the place. Little disappointing I can't stream directly to my NAS from the cameras or the PC (cifs/nfs) but lucky for iscsi, I thought from what I had read that would work and I could use net-i viewer to search for events, but no simply FTP and then you're restricted on quality. Then you have Net-i Ware, why not just focus on one product when the features are so similar, you just end up with two crap products.
Day time pictures are rather amazing compared to my old cctv cameras, night time vision is pretty shocking, I have either got the settings wrong (there's that many to choose from) or it's a bit of false advertising going on. I can see better myself than what the camera sees.
Maybe I made a mistake in purchasing these cameras, will have a play with the settings a bit more and post up some pictures.