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I'm looking to get a 6-8 camera setup and needed a little help with my choices. I pretty much have it narrowed down to Hikvision 2032 or Sharx 3905 (unless anyone else has recommendations). I do have a few questions regarding setup. With the Sharx cameras it was recommended by them to get a NAS to record onto but it seems like with the Hikvision most people use a DVR? Why choose one over the other? Can anyone recommend a good model? Also, setup wise, I just keep reading mixed stuff about the Hikvision depending on U.S. model/international. I have no experience setting up something like this before, is it pretty doable by a novice? Lastly, with the Hikvision cameras, what's the easiest way to view with mobile phone (Android). Thanks for any help, I'm hoping to get some ordered as soon as possible.