Hi Zr1,
Trouble i think your going to have with the outdoor wireless camera's is they will most likely still need power of some sort which will need a cable (unless your planning on going outside every time with a ladder to change the batteries every couple of days etc (not so practical specially in winter months). So if you are running a power lead, may as well run an ethernet cable too, the packet dropping will be much less this way as well.
You could run all your camera feeds to your NVR and then encode the NVR display (or VMS display) with something like an IES-500 ( http://ieslive.com/products/ies-500/ ) and stream it into a H.264 compressed codec stream, if you port forward it you can access its feed anywhere with VLC player (Smart phone, PC, MAC etc) i think it also has the ability to stream to Youtube which might be something to look into for private viewing, but probably not as ideal.