I can't provide any kind of professional advice in regards to your camera locations (or even for sure your camera selection), but I can tell you that I've heard really good things about the Hikvision 3MP bullet cameras from multiple sites and reviewers I'm starting to trust.
I'm in the same boat as you regarding spec'ing out my design plans and implementation, but it appears I started on the other end. I plan on using a few dropcam pros to help create a hybrid environment (probably 3 of them in the house in areas I wouldn't mind being exposed if somehow their site or my login credentials were compromised, but locations that would still provide security to my setup, including one in my NVR room to ensure I have video recording if anyone is crazy enough to try and take my server rack with them).
That said, I'm a web developer / programmer and for me the idea of running my security system on a regular PC doesn't swallow well. I decided I wanted a dedicated NVR rack server, but hadn't decided on which yet. I spent a good week in my spare time researching and finally settled on the Synology Surveillance package (which runs on any Synology NAS). They have an NVR recommendation tool to help you identify what you'll need to handle the fps, camera resolution, and storage requirements for your setup that seems okay.
They're customer support has repeatedly told me that the RS814 (~$600) is capable of handling more 1080p video feeds with supported cameras than the RS812+ which has twice the CPU processing power and up to three time the memory. I'm still perplexed by this, but I plan on eventually buying one of their rack NAS solutions to become my primary NAS on my network and switching my Drobo FS I have currently to an off-site backup solution for that. Ultimately I'll probably end up with both the RS814 and the RS812+ and whichever actually handles more cameras better will be the one that runs my surveillance setup full-time long-term.
I don't believe the Hikvision cameras you're looking at are directly supported (yet), but supposedly they are supported well via PSIA or Onvif (but use PSIA as it supports motion detection from the camera rather than on the NVR which kills your CPU and reduces the fps / number of cameras you can support as a result).
All in all I think we're ultimately looking at similar setups (I'll have at least 8-12 cameras in my setup long-term) and I think the Synology Surveillance NVR will suit your needs well. You may not be able to run all of your cameras at 1080p directly to the NVR for recording simultaneously (though the PSIA motion detection should help you get as many as possible), but I've had it recommended to me to run the majority of the non-critical live feeds such that they copy their video files to the synology server rather than streaming and recording directly which will allow you to have a ton of these at 1080p with flawless playback, etc.
For some amazing feedback I received regarding my plans please see this thread:
http://forum.synology.com/enu/viewtopic.php?f=82&t=78606&sid=419327101b528cf17f723e815354903a
Hope this helps as a potentially good NVR fit for your needs.
