Color coded gnome-terminals for users

[Sean Murphy <murphy erim-int com>]

I was wondering if there is a way to color-code gnome-terminals based on
what user you are.  The biggest use I can think of for me is when I open
a term as myself, it stays the default colors that I have currently
selected, but when I 'su' it would change to some other color
combination (preferably bright red letters on black) so that I don't
forget that I can really screw things up!

I'm not sure if this is really a gnome specific question, or if it is a
general xterm question, although I use gnome-term, so anything that is
specific to gnome-term would definitely apply in my case.

I thought I remember reading something about this as some sort of a
script or something, but I can't for the life of me remember where I saw
it...

Sean