Hey, I really like the Warcraft 3 music and I was wondering what software they used, any clue?

They were orchestrated, but they used some sound editing software to clean it up.

They probably used a pro-grade sequencer/sampler package with a number of high quality sample libraries.

I believe Garritan Orchestral Strings was used, or so it says on the GPO website. :D

Well, warcraft three did have at least 3 seperate composers I believe, each doing their own thing.