Need upgrade to Logitech Alert System

[scriber17 0]

Currently have the logitech alert system. It was easy to setup and has mostly served it's purpose except I can't stand the picture quality. I want something in real HD, even though logitech alert system is supposed to be 720p I can't make out the faces on people. Thinking I need about 6 inside cameras and 3 outside cameras. PTZ on some cameras would be nice. Would like to stick to 1 wire. Drilling holes will not be an option, will probably hide wires in some kind of trim/molding. Want to keep it simple, so I definately don't want a pc based system. Would rather not have a dvr. Have looked at AXIS but the camera finder tool suggested an M5014 which is only 720p. Any help would be appreciated.