I would recommend the Hikvision POE cameras. I have installed about 25 of them and only have one failure in 3+ years and that was a unit that was up in a tree and the connector got full of water.
Nelly's Security out of Tulsa is where I buy all of mine. They are white labeled versions of the Hikvision units but still have the 3 year warranty.
You will need a POE switch to run them as that is what provides power and will install that where every the other ends of the Cat5/6 terminate (closet, utility room, etc)
I would say get at least the 4 megapixel cameras, that will be higher than 1080P quality and is plenty good to make a description of someone. That being said, when I bought my first cameras I paid around $180 for 3 Mp cameras, and then about 1 year later the 4 Mp cameras were down to $150, so prices do fall over time obviously.
Another thing on the Hikvision, there are people on Amazon selling the Chinese version for $30-50 less, but they are firmware locked and cannot be upgraded, so I always avoided. Hikvision is pretty good about releasing firmware regularly that gives new features and security upgrades. The chinese version either will brick or revert to all chinese when upgraded.
Finally, on the DVR, Nelly's also sells the Hikvision NVRs. I installed a 32 camera unit for a customer and it has been running for 18 months with no issues. It can hold 3 or 4 HDs up to 4 Terabytes and remote access is built in and they have Android and Iphone apps that are free.
IMO, I never understood the fascination with a wireless IP camera. You still have to power it and then you have a camera that may drop signal if it loses the wifi connection. Maybe they have gotten better, but when I did my research many people would have cameras that would go in/out frequently with a wireless camera. Now something completely wireless with batteries that last months would be good in certain situations.