I settled on this for the moment, as it preserves the order of the first list, which is a requirement.

@foo = qw/tom steve bill roger bob/; 
@bar = qw/roger;99 steve;56 ted;88 tom;54/; 
foreach $line(@foo){ 
  foreach $line1(@bar){ 
    @split1=(split/;/,$line1); 
    if($line =~ $split1[0]){
      printf("%5s %3s\n",$split1[0],$split1[1]);
    } 
  }
}

__END__

  tom  54
steve  56
roger  99
[download]

Thank you for the suggestions