Hush Hush Sweet Charlotte and Whatever Happened to Baby Jane? are both available in Australia on DVD.
Blacula had a R1 release (I have it, along with Scream, Blacula, Scream!) - they are both available from
www.dvdpacific.com for less than USD10 each.
Mommie Dearest (the movie about Joan Crawford) is also available in Australia.
All the Australian releases that I mentioned are available from
www.ezydvd.com.au