DJing weddings

So I DJ'ed one roommates wedding a few years ago but that was a bum job since I didn't have the right equipment then.
Nowadays it seems like I'm going to have to DJ all my friends weddings. My advice:
1) Get a songlist of must-play songs
2) Discover bride/grooms musical tastes
3) Discover who will be at the reception.
4) Plot accordingly.
5) iTunes Party Shuffle. 'nuff said. Start slow with oldies early for the oldies then speed things up later. Toss in the obligitory slow dance song every 3-5 songs. Play the dance songs you hate but that get people moving (California Love just works for this).

You too are now set.