Hugh did some TV work in Australia prior to his breaks in "Oklahoma" and then "X-Men". These are available on DVD in the U.S. now:
A pre-30 Hugh in "Rat Tamer" which was apparently the pilot for the TV series "Corelli" - he met his wife - she was the star. I wish the whole series was available.
"Snowy River: McGregor Saga" series - avail since last year.
He also did "Profile of a Serial Killer" - I found the lead actress kind of boring, but he was good (of course I'm biased).
You can catch clips from some at various websites.