Meet mySight by iLuv: a WiFi security camera with noise and motion detection to help you keep an eye on your home from your iOS or Android device. It records and saves video to a cloud server. You also get live streaming with strong encryption. The camera detects noise and motion to send notifications to your device. It has a digital zoom and night vision capability.
mySight lets you keep an eye on your children, pets, and everything else. Sets you back under $150 at this time.