I did all my undergraduate writing in Word. I tried a few other programs, but I just kept coming back to Word because it has a lot features and works well. It has an outline feature that will allow you to move chunks of pages around in the document. I would recommended it because it allows you to quickly move between pages and allows for the movement of the pages themselves. It also gives an outline, so you can expand and contract certain sections and headings which can then be moved as well. Once I learned how to use this feature, my writing became much simpler. I don't think most people use Word to its fullest and, therefore, look for something else. It may be worth it to research some of the lesser known functions of Word and see if it can do what you want before you spend money on another program. No need to spend money for the features of another program that Word may already have.
My graduate work was done mostly in Word too, but at the point I needed another program to help organize all of the research. I needed something that could gather all of the Excel data, charts, stock ticker information, Word documents, etc. that I was using in the final assignment. I didn't need another program for the actual writing, I needed something to gather all of the different file types and the information scattered throughout the files.The actual writing was all done in Word. Its a great writing program and works well in Academia.
I do give a vote for Scrivener, though. I am an author in my free time and Scrivener is amazing for this. It allows for storyboards and character descriptions and whole pieces of the story to be easily be moved around. The real power of Scrivener comes from its output options, I think. It can take the work you have done and export it in tons of different formats, all tweaked to look and feel exactly like you want them too. Makes life really simply when a documents needs to be exported in several different ways and in different formats.
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That is great deal on Scrivener. I already have it for the Mac, but at that price I am definitely picking up a Windows copy as well.
