I've done something like this before. I've changed talexb's code a little to account for things that you want to keep in special case, like "II" as in "Greatest Hits Vol. II". 
#  Title case except for some special words
use strict;
my %Exceptions = ( 
    "and" => "and", 
    "the" => "the", 
    "or" => "or", 
    "zztop" => "ZZtop",
    "ii" => "II" );

while (<DATA>)
{
  my @Results = map { (defined ( $Exceptions{lc($_)})) ?
   $Exceptions{lc($_)} : ucfirst ( lc ( $_ ) ) } split ( /\s+/, $_ );
  #captialize first word regardless
  substr($Results[0],0,1, uc substr($Results[0],0,1));
  print join ( " ", @Results ) . "\n";
}

__DATA__
red hot chili peppers
by the way
zztop
greatest hits vol. II
the beatles
the white album disc II

__OUTPUT__
Red Hot Chili Peppers
By the Way
ZZtop
Greatest Hits Vol. II
The Beatles
The White Album Disc II

[download]
You will have to expand %Exceptions as you find/think of them.

__UPDATE__

added code to capitalize first character of first word.

--

flounder

In reply to Re^2: RegExp Capitalization of Entry by flounder99
in thread RegExp Capitalization of Entry by bladx

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.