But the sheer number of memory cards on the market can make it hard to know which SD card is right for you and your camera.

Secure Digital memory card prices have plummeted over the last couple of years. You can get a 16GB SDHC memory card—which can store more than 2,800 JPEG images shot by a 16-megapixel camera ...

If you're setting up a security camera or system, there are a few worthwhile considerations to help determine the right size SD card to use.