root question

["David Hansen Jr." <merlin001 jps net>]

Is there a way to make a second user, similar to root, that has full access 
w/o having to type su each time?  I've got a 6.1 box that I have my p/w set 
as su, but I need to give another full access, but I don't want him to know 
my password, and I'm not too fond of changing it.

Thank you kindly,
David