If you're finding the default max camera distance a little claustrophobic, try this on for size:

/script SetCVar ("cameraDistancemax" ,90)

Now you should be able to zoom your camera much much farther.

hehe, can i input any number, say, 200?

Naw, the game is capped at a certain max. There is a trick, however, to edit the config.wtf file to make the camera buttons take you out that far.