Alarm System Product Help

Hi all,I am hoping to get some assistance with choosing the best products for my home.My main question is, if i have contact sensors on each of the windows and doors on the ground floor, do I need to set up a motion detector?I have 2 doors on the ground floor and 3 windows. What products do you recommend to secure the property?My thoughts are to purchase the 5 piece security kit, add 2 additional alarm contact sensors along with a stick up cam (which will be positioned to see the front door and the window on it's left).