Yes, I saw trixmoto's script and do like it a lot, but I am also hoping that the short-term and long-term plans that rusty posted in this thread earlier will be implented. As I understand it, with rusty's plan, you don't have to have a script remove duplicates - the duplicate songs won't be added in the first place.
Rusty, or any other developers, can you comment on the progress of this if possible? Thanks.

And thanks to trixmoto for his script and rovingcowboy for pointing it out as well.