dvdbeaver
no not a site about animals
(and please no sexual innuendos!)
but one that compares various versions of dvd releases.
want to know whether the release is R1 or R2?
anamorphic or not?
subtitled?
picture comparisions
birates
blah blah blah
checkout this link for the film "the thing":
http://www.dvdbeaver.com/film/DVDCompare6/thething.htm
in short, a very, VERY, useful site.