Incoming caller ring
Here is the link to the user manual if you need it.
Unfortunately what callers hear is dependent on the phone they are calling from, not on your phone. You could concievably send them a mutimedia message when they call, but there is no way to automate this, and it would probably be too much trouble and expense to bother.
Wait a year or two, and it may well be that manufacturers start including this feature - it would require a slight modification of the communications protocols on the cell networks, but it probably would be popular. Good idea.
Hope this helps :)