Definitely low end. $100 price range/camera. Also, they have to be compatible with common PC monitoring apps like Blue Iris. Is that ONVIF compatibility maybe?
ALTHOUGH, I might consider a hybrid approach. For instance, use two slightly better cams for the front of the house so I can get good imaging of the street. Whereas the side/rear house cams can be cheaper.
For instance Hikvision Exir DS-2CD2332-I (these look really good actually):
http://www.amazon.com/Hikvision-DS-2CD2332-I-Turret-Weatherproof-Camera/dp/B00GYHEG0S/ref=sr_1_3?ie=UTF8&qid=1405133267&sr=8-3&keywords=Hikvision
And for the side/rear, something like this DAHUA IPC-HDW2100:
http://www.amazon.com/Dahua-Megapixel-Infrared-Security-Surveillance/dp/B00HG137OM/ref=sr_1_1?ie=UTF8&qid=1405133864&sr=8-1&keywords=Dahua+poe+security+camera