Machine Account Usernames and *BSD

[Jacob Rosenberg]

I've been trying to get things working with FreeBSD 4.2 and ran across
this tidbit:

[from: http://us1.samba.org/samba/docs/ntdom_faq/page2.html]

>To create the machine account on the Samba PDC, first create an account
>in /etc/passwd for the username workstation_name$.  Currently the uid is all
>that will be used and this is to ensure that the samba generated machine
>RID for the worstation account will be unique.  Therefore you should not
>reuse unix uid's in /etc/passwd.  The shell or home directory fields in
>/etc/passwd are not used for now and can be set to /bin/False and
>/dev/null respectively.

The problem with this is that FreeBSD does not seem terribly eager to
permit the '$' character into userids. Has this problem been worked
around? Any thoughts/suggestions on a fix?

Thanks!