Be aware there are a couple of annoyances with the conversions between Open Office and Microsoft Office. Some special formatting won't make the jump from one to the other. Tables can often be lost. If you aren't sharing information with others with MSO which most don't from home, it's not a worry. Problem is Micro$oft doesn't like to play well with others.
Open Office does export directly to .pdf though which is great for getting something out to someone else. They are also working on filters to import .pdf. That'll be awesome if it works well!
"Success is not final, failure is not fatal: it is the courage to continue that counts." Winston Churchill