Just a thought I had... How about a link in the Control Panel for "Send Message" which brings up a personal message window with a blank "To:" field. I usually know the username of the person I want to send a message to and it would often be more convenient to simply type it in than to go looking for a comment or image by the person in order to get to their profile for the personal message link. I know some people save all of their old personal messages and can easily just reply to one, but I don't save mine, and I'm guessing others might not either.

Also, since the name in the "To:" field can be changed freely (already functional), and in this function would obviously have to be entered manually, it would be nice if there was some feedback when the name is not of a valid registered user (as when there is a type-o), and it would let you correct the name without losing the comment you typed. Anyone have any other thoughts on this?