You want specific non-superusers to start and stop system daemons.
Here we let four different users start, stop, and restart web servers. The script for doing so is /etc/init.d/httpd for Red Hat, or /etc/init.d/apache for SuSE. We'll reference the Red Hat script in our solution.
/etc/sudoers: User_Alias FOLKS=barbara, l33t, jimmy, miroslav Cmnd_Alias DAEMONS=/etc/init.d/httpd start,\ /etc/init.d/httpd stop,\ /etc/init.d/httpd restart FOLKS ALL = (ALL) DAEMONS
Note our use of sudo aliases for the users and commands. Read the sudoers(5) manpage to learn all kinds of fun capabilities like this.