add multiple users to multiple machines with visudo

[titan1000]

anyone have some algorithm or any insight on adding user1/user2/usern to machin1/machin2/machinN etc

basically need to ssh to each box as root.
useradd etc. visudo,
add user to group.
logout as root.
test login as that user.
test sudo access.

if anyone has any comments ...

[burschik]

Since visudo is interactive, this is going to be very difficult. If you were to edit sudoers with sed or a similar tool, the job would be much easier.