I agree with the concensus about using Config::Simple, that will suit most of your needs. But, if you do go with the 'our' solution, you might find it handy to put those variables in their own package. Like,

package MyConfig;

# Scalar Variables
our $scalarone = "one";
our $scalartwo = "two";
our $scalarthree = "three";
our $scalarfour = "four";
our $scalarfive = "five";

# Array Variables
our @arrayone = ('one', 'two', 'three', 'four', 'five');
our @arraytwo = ('six', 'seven', 'eight', 'nine', 'ten');

# Hash Variables 
our %hashone = (
  ONE => 'one',
  TWO => 'two',
  THREE => 'three',
  FOUR => 'four',
  FIVE => 'five');
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Then, you would refer to %MyConfig::hashone, $MyConfig::scalarone and so forth. Which would keep the variables out of the global name space and give you a visual clue (the package name) that these variables are in the config file. But, again, Config::Simple is by far a better solution.