Need BASH script help

[Joel Oliver]

Hello, I was wondering if there's anyone who can help me with my problem.

OK.... I have a huge directory of movies (1200+) all in one directory 
and I wanted to "divide" them up...  Smarty me comes up with a great 
idea... symbolic links...  Now it would take forever to go into the 
terminal and ln -s every file so I discovered konqueror does this with a 
drag and drop... Great!  So dragging and dropping away I sorted all my 
movies alphebetically, by release date, by actors/actresses...  All was 
well except one BIG thing...

I play them on my neuros OSD and mount them via NFS.   Konqueror really 
botched this as it created absolute path links and I needed relative 
paths....like it did this:

my movies are in /big/sda/moviesa/

my OSD mounts this in /mnt/media/nfs

so the path after the mount is /mnt/media/nfs/sda/moviesa

my sorted symbolic links are in /big/sda/Sorted/Alphebetical/A/movie.avi 
and these are linked like /big/sda/moviesa/movie.avi which is great on 
the computer but the path is wrong on the OSD.  I thought I could 
'trick' the OSD with a symbolic link right in the root of the drive, but 
this area is solid state and won't let me write to it... So the big ?:

Is there an easy recursive way to recurse through a whole directory 
structure, chop off the /big/sda and replace it with a relative ../../..

If I link it as ../../../moviesa/movie.avi it works on both machines.... 
But that's alot of files to do one-by-one and I'm kinda stumped...

Any quick ideas?  I realize this will work with every file as long as I 
keep all my links on the 3rd layer... otherwise I would need more or 
less "..'s"      :)

Thanks in advance,
Joel.