Live View
Some models of cameras have "Live View" and, if you have been using a digital point and shoot, you are quite used to using one. It allows you to use the LCD on the back of your camera to compose your shoot and to zoom and check focus. I am not a big fan of it (since LCD's are still hard to see in bright sunlight) but many people love this
feature.
Frames Per Second (FPS)
Frames Per Second is how many images your camera is capable of taking in a row with the shutter button held down and in "multi" mode. If you just take a snap here or there, or take a few minutes to compose a great landscape, this will not be at all important to you. But if you shoot sports or wildlife, this will be high on your list to look for to capture fast moving action. 2- 3 FPS would be Normal; 8 FPS would be very fast.