hi there I am looking into a budget camera system I purchased a swann pro cctv kit but found the wires and layout of my home to be wrong. so it was returned Im not looking for internet features as only have mobile pre paid net I have a pc and wifi router so thinking wireless am new to this so any ideas what to buy and how it fuctions would be good and listened to I am looking into the $500 dollar range unsure about nvr and ip thanks