How to include avatar in header?

[smoovie]

I'm looking for a way to place user avatars in my header when they log-in. This is the header image.



You can see the spotlight on the icon. I want to remove the icon and just leave the spotlight. Right no problem there. What I can't do is code in it's place the users avatars or the default avatar if its a guest. This would allow me to remove the avatar from the navbar and really personalize the site for my members. I could have this set as the header background and use the avatars over it. That would work also.

If anyone can help me out with this I would appreciate it.

Thanks.

Gabe