Hi, I'd like to install a home security system with a minimum of 2 cameras, one outside and one inside the house. Basically, I'd like to record the video to a HDD - preferably to record for 2 months or more, and also have a movement detection /email alerts. But the movement detection would need to be adjustable, not over sensitive to tiny movements or changes in lighting conditions. I'm thinking of spending around 200 euros. Thanks in advance for any suggestions.