I am currently running Drupal 6:

I need to be able to do one of two things:

1) Set an account expiration date such that a user can not login after that date.
2) Add a date field to the user account which only the site admins can see/edit.

Are either of these things possible? I know that there is an Account_expiry module, but it currently only works in version 5.

Any ideas?