here a working /etc/fstab example:
works for me, so i just need to issue "mount some_directory" in xterm to get access. if you change "noauto" to "auto", it should happen automatically at bootup, but usually that's not a good idea. changing "ro" to "rw" will enable write access.

i haven't tested without noauto, but it could really stretch your boot-time if the device waits for some time-out when you're nowhere near your local net.

also, this is a CLEARTEXT password! so create a user with minimal rights on the server just for this purpose, the "pass=" parameter is not optional if you want to use fstab.

edit:
/etc/fstab is autogenerated, so the above line has to be put somewhere else to be permanent, but i got no time to look now