I have the /media directory shared on my desktop. I just need to open that and select the Memory card "TWiT". It may be better doing it that way for a removable device.
comment = MediaShares
path = /media
read list = jschiwal@hpamd64
write list = jschiwal@hpamd64
read only = No
inherit acls = Yes
I am using the USER security model on both my desktop and laptop.
There is a book "Samba 3 by Example" that you can download from the samba.org website. It is also supplies by a samba-doc package in SuSE. Your distro may offer it as well, either as a pdf file or a postscript file.