I like it... though the words returned now have trailing newlines. I can move one char from the sub to the command line options, thus improving the score by 1 under normal golf rules. 58 chars 
#!perl -l

#        1         2         3         4         5
#234567890123456789012345678901234567890123456789012345678
@_=sort@_;$"='?';grep{(join'',sort split//)=~/^$\@_?$/}<D>

[download]

-Blake

In reply to Re3: "Countdown" (golf) by blakem
in thread "Countdown" (golf) by stuffy

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