iWork is awesome... if you want to work within it, and don't care about full compatibility with other programs as far as edit-able goes. If you don't mind saving as PDF, and viewing it on other computers that way, then iWork is fine. But if you need to edit your files on Word too, then iWork won't be that great.
But if you don't care about editing it on other computers, do get iWork. It's only $50 for students, and Keynote rocks.
But if you don't care about editing it on other computers, do get iWork. It's only $50 for students, and Keynote rocks.