Something like this is easy to find on google but just a note to myself:
1) Set
security = share
2) Make a share like so:
[mnt] path = /mnt comment = mntroot browseable = yes guest ok = yes read only = no #set to yes most likely, this will allow rw in its current state using the nobody user write list = john # or you can do this 
public = yes
3) Since I do want the nobody user to be the one linked to the guest user, I do this just to be safe:
guest account = nobody
4) Restart samba:
/etc/init.d/samba restart
Done! I did this on my new Debian 7 install!!
