I want to organize my music collection(folders)

I personally use my own music folders, but, iTunes has some advanced features to organize music.
Also the Zune Software too - beautiful btw.

Try mediamonkey.

It too is a good choice for these kind of things.It has an autotag feature which will allow you to directly tag most of the songs from the internet.

+1 for mediamonkey.. The auto-organize feature is awesome..