Pannig across or zoomin on a still image is a common technique knows as the Ken Burns Effect. It’s effective for adding a bit of life to still image sequences (slide shows), but watch out for sizzling horizontal lines and edges if your output video is interlaced (eg DVD).
As for text media “typing” effect, you can do this with the built-in text media generator using keyframes. Start with just the first letter of your title/caption, then add a keyframe and add the 2nd letter to the text, then another keyframe and the third letter… until you have the complete caption. It’s a bit laborious, so you may want to look at other titling plugins if you want to do this a lot.