Chewtobacca said:
You could produce a fake 5.1 mix using Sony Vegas, TVF. It wouldn't be perfect, but it would certainly suffice, and it's dead easy to do.
Thanks Chewtobacca, but I've never tried out an editing program before and wouldn't have the first clue how to do something like this. I'm a reasonably patient person, so I'll be waiting/hoping for others like dark_jedi to lead the way.
And thanks for the additional info skyjedi2005.