The Personal DJ
Weddings now a days are all about making it unique and memorable. DJ's can help make things more personal. They can ask the bride & groom why they picked a particular song for their first dance. "I went to a wedding where it seemed like the DJ knew the couple their whole lives. When he introduced the song for their first dance he said a little about what the song meant to them and when I watched their wedding video it was like having a commentator. I though it was sweet." Talk to your DJ/MC about things like this, for example, tell your DJ how you met, what you did on your first date, etc.
Your guests will feel closer to you and more involved in the festivities when these intimate details are shared.