As one who does it very often (!), I'd suggest using Publisher rather than Word. That does it extremely well.
I just (yesterday) produced a new 28-page Communion service book, and have a wedding service book (the full one with all the service, not just the hymns and descriptions) on the stocks at the mo. Publisher is the way to go!
If you're stuck, e-mail me what you have and I'll lick it into shape in Word for you (pm me for the e-mail address). No charge