Staples, Office Depot, and most decent home improvement stores have an an excellent selection of security cameras and other related products. Prices range from $100 and up for complete systems.
Just about everything is available online. If you can't find something in the store, chances are, you'll be able to find it online. Home security cameras are available online, there are quite a few sites that sell these products.
You can get home security cameras from ADT for a dollar a day. You can also find home security cameras at BestBuy, www.ezwatch.com/Home-Security and www.skywaysecurity.com.
Best Buy has a large variety of cameras at affordable prices. There are often sales on the cameras and a sales representative will be able to help you find a good camera at a god price as well.
http://www.homesecuritystore.com/security-cameras This site includes many home security cameras. The need of a home security camera is personal preference.
You can find more info on security cameras by going to any local store around you area about security cameras. Or you can also go on Amazon.com to find out.
You can go to Ebay.com and bid on a security camera system. This would give you a good idea of how much you are going to have to spend. Also remember that you might have to pay someone to install this new system for you and that would be a added cost. Another place to look would be Craiglist.com you might be able to get some good working used cameras for half the price of a new one.
You can visit Radio Shack for information about security cameras. You can also see the following: www.securitycamerasandmore.com/securitycamerasinformation.html
You can contact and get information on where to buy these security cameras from avigilon.com.They specialize in what your looking for high definition surveillance equipment.
Best Buy has many affordable Nikon cameras. There are also many deals available for cameras on eBay and Amazon. You can also check out local camera shops as the might have better deals than bigger stores.
You can get information on home security wireless cameras from reviews on websites that sell them, to find out the best one for you that matches your needs.
You can find decoy home security cameras to throw off any criminal or other person of interest outside your house at your local Home Depot or Lowe's Warehouse.
You can find lots of security cameras for sale in Daiso (where they sell cheap but still usable quality ones) or in stores like Best Buy's or Fry's. You can also try Amazon.