I can understand that. I think it sounds really good with the Trade Federation so I'm going to leave it in. You can let me know how much it offends your ears by checking out this clip ;)
http://www.youtube.com/watch?v=9zntFGM85ic
I think it works nicely. Not to mention it's not the first time a real language has been used for an alien one, Nien Numb after all :)