read only cvs account...?

[christopher j bottaro <cjb cs utexas edu>]

hello,
i have a module in my cvs repository that i work with on a daily basis in a 
normal manner.  i want to allow someone read only access to the module (i.e. 
i don't want this person to be able to add, remote, commit files).  i just 
want them to be able to check out the module and that is all.  how would i go 
about doing this?

thank you,
-- christopher