You can always modify /etc/fstab and set umask=002 and the gid={id of users}, which would result 775 files you want.
I have never tried it with any file system other than VFAT, which does work, but if I recall correctly, when trying to put those same parameters into the fstab on a ext3 file system, it refused to mount.
Something like this:
Code:
/dev/hda2 /media/share vfat auto,users,exec,umask=000, gid=46 0 0
Hope it helps
--
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Other Machines: Edubuntu 6.06, Debain Etch, Debian Sarge.