I have over 5000 songs as MP3's on my computer that runs windows XP. 
I use apple itunes as my media player.  It has volume leveling that
works fine when I play songs on my computer, but when I transfer those
songs to an ipod I loose the volume leveling, and some songs are super
loud while others I can bearly hear.  Any thoughts on how to fix this
annoying problem?  Is there a program I can use to volume level all my
MP3's on my computer before they even get loaded onto Itunes or should
I look for an attachment that works with ITUNES?

Hi, hipdoc
      I suggest you use MP3Gain (http://mp3gain.sourceforge.net/).
MP3Gain analyzes and adjusts mp3 files so that they have the same volume.

MP3Gain does not just do peak normalization, as many normalizers do.
Instead, it does some statistical analysis to determine how loud the
file actually sounds to the human ear.
Also, the changes MP3Gain makes are completely lossless. There is no
quality lost in the change because the program adjusts the mp3 file
directly, without decoding and re-encoding.

I use ipodgain with mp3gain and it works quite well.  One thing to be
aware of is that, even though there is a program for AAC files,
AACGain, there really is no easy way (that I know of) to normalize the
volume on purchased songs from the itunes store.

Wow! fsmth-ga you tried to answer both my questions for FREE /.)
THANKS!  One Question: Is this a program that Levels all my MP3's
before they get opened by itunes OR is this a program that works on my
IPOD after I put the MP3's on the IPOD via ITUNES???