http://www.griskey.com/music.php
Download the track titled "KOTOR March (End Credits)"
I think that would be absolutely PERFECT for the clone parade scene. It has a build up, that menacing quality, and, I think with the right editing, a suitable length. Let me know what you think.
And Trooperman, will you be adding the "OT-trooper" voice effect to the clones in SOTD? You know, it's that "click" the trooper's helmets make whenever they speak a line. I think that would go a long way towards establishing a connection between your SOTD and the classic trilogy.