Line Break/Word Wrap Algorithm

Anyone know of a good Line Break/Word Wrap algorithm? Word Wrapping is something that I take for granted, since most Windows UI elements take care of it for me (i.e., textbox, web browser, etc).

I wanted my console application to wrap at 80 characters, but my 5 minutes of searching didn't return anything especially useful or simple.

I wrote the following, but I'm sure it can be done better somehow:

string[] blocks = text.Split("\n".ToCharArray());

for (int i = 0; i < blocks.Length - 1; i++)
{
    if (blocks[i].Length < m_width)
    {
        Console.WriteLine(blocks[i]);
    }
    else
    {
        int j = 0;
        while (j < blocks[i].Length)
        {
            string tmp = blocks[i].Substring(j).TrimStart();

            if (tmp.Length > m_width)
                tmp = tmp.Substring(0, m_width);

            int k = tmp.LastIndexOfAny(",.?!- ".ToCharArray()) + 1;

            if (k == 0)
            {
                k = tmp.Length;
            }

            Console.WriteLine(tmp.Substring(0, k));

            j += k;

        }
    }
}

By the way, there's an improved version at:

http://jasonf-blog.blogspot.com/2005/07/word-wrap-version-2.html