Hi all I was wondering how I was to move a camera in After Effects along a curved line line or like orbit around a sphere.
There are a zillion techniques. To set up to orbit a camera you can use the built in menu commands Layer>Camera>Create Orbit Null then just animate the rotation of the null. This is AE Basic stuff and you'll find a bunch more resources if you type animate camera in AE's search help field and check out the community resources.
Here are a couple of videos that I made that will give you some very basic techniques:
And this one which shows how to use a Mask Path for a camera path: