Can I customize the notice Admin receives when new blog created?

I would like to edit the message that is sent to me when a new blog is created.

I would like to set the address the message is sent to, and the from name and email address.

Is it possible to edit the email address the message is sent to, and what screen or page would I go to for editing it?

Also, can I set the from name to be that of the new blog admin and email address to their email address ... preferably using WPMU site variables? Where would I edit that?

Thanks,
Kirk