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If someone can please help me get correct system I will donate $20 to their choice of paypal address - thank you! I have a cat5 wire outside at front door where theres no power outlet or wifi so i need out door camera there with a balun. My rooms are prewired with ethernet and coaxial with all wires going to network hub in master closet. I would like to get cameras so one is permanently mounted outside while the 3 can be moved to any room and plugged into ethernet outlet. The router and modem are presently in bedroom connecting to coaxial internet coming in from closet. So do I put dvr/nvr in closet so all cat5s connect to it and then connect it to bedroom computer using cat5? I would like motion recording with iphone monitoring and notifications in app or through browser. What bundle can I get - dvr or nvr? I tried asking Best Buy support but they say I must have power plug and dont even know whats a balun.