If you collaborate with others and use web-based email, do yourself a favor and don't purchase iWork 08. Before you can email a Pages document to someone, you need to zip the file. Then if you are using certain web based email programs, you will need to change the file extension from .zip to something else. Then the person who receives the file will need to correct the file extension. Then they will need to unzip the file before they can open it. You don't have this problem if you use MS Word in Office. (Personally I would rather not purchase ANY MS software but MS Office is better in this situation). Cheers.