How to use sudo not root

[Joseph Smidt <jsmidt@byu.edu>]

When I installed Debian I selected to not allow root login thinking that
would enable sudo and disable root.  But when I logged into gnome it
kept asking for the root password to do admin things, so I set a root
password and it works.
   However, I would like to disable root and have it so my sudo password
works for all the gnome admin things, like opening synaptic.  How do I
do that?  Thanks.
			Joseph Smidt
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Joseph Smidt
jsmidt@byu.edu