The BIG one! Wedding photography!!

If there's time before the wedding, I would find an experienced photographer and ask to assist, do as many as you can.
Google wedding photographers and view their work.

make sure you have the equipment needed. ALWAYS have a back up camera and bring someone with you, it's good to have an assistant.

You'll get all kinds of theories, however, it's good to view work from well known wedding photographers, many do give advise on their sites.

Research 

Cool thanks.

A bit of time. It will be early June.

Congrats!!!
I remember my first wedding fondly.  I still have some of the pictures from that wedding on my website!  I had no business at the time coming up with the quality I did, because I look back at all I didn't know back then, I chalk it all up to dumb luck and good sense to be nervous enough not to take anything for granted.  I worked hard.

So here is my best tip:  Be nervous - don't get complacent, the weddings that I have approached with an "I know it all" attitude have NOT yielded my best work.  Perhaps you don't feel that way because it is your first, but don't feel that way because it's "just family" either.

Anyway, tell us some details and we can probably help you out with specifics.  Like is it an indoor wedding?  Outdoor?  Church?  Where is the reception?  Do they want family pictures?  When will those happen?  How long did they plan for them (under an hour and you have your work cut out for you)?  How long will you be there?  All day?  What gear are you bringing?  Do you have someone that can tail you around and hold reflectors, pack your gear, round up stray people for formal pictures? 

Anyway, fill us in, I want to be helpful, but also remember not to get overwhelmed with our advice.  I shot my first wedding without ever assisting at one, I also didn't tell the bride it was my first (hey, she didn't ask and she was happy as could be with the results, not that I recommend that, I got damn lucky).  I actually also had never used the camera I used at that wedding before, it was my first digital SLR.  Sheesh I am stupid, or was, that was YEARS ago.  MY POINT is that if you can take decent pictures and work well with people and work HARD, you will do awesome!

Look at some wedding images on the 'net to see what you like (or don't like!)

ALWAYS do the traditional shots AND ALSO the artsy stuff because you are shooting for at least two different audiences, the parents and the bride and groom.  The parents will (most likely) be more interested in the traditional images, and the bride and groom (most likely) will be more interested in the artsy stuff, although you will get some crossover buying also. 

The groom should always be posed at camera right with his bride at his right hand side. This will place his bouteniere closest to the camera.  Posing him backward will allow the bride's veil or shoulder to obstruct the view of it, and she will no longer be at his right hand side where she should be.  Tradition states that a man's most important person is at his right side.  We even have made a saying of it; "He is my right hand man."

A slow shutter speed will brighten up those dark backgrounds (use a tripod!)  I use two off camera flash units for my formals at the altar.

Benji

Communicating with the couple of what THEY want also helps.

The booking today I did, they DO NOT want traditional posed portraits which surprised me, but, really, that's different and I like the interaction shots between the bride and groom, makes for a great story. The photo session will take place at the beach, I'm looking forward to it.

You'll get all kinds of request, DO what they ask, make them happy.

Break rules, be creative, go outside the box.

I recieved a response from the bride to some questions I had for her.
The ceramony will be indoor and the reception outdoor at the same location.

She listed off some shots that are important to her and it looks like she has a very traditional/stereotypical picture in her mind for the photos.

I'll be shooting from 11a to 4pm. From the time they prep for the ceramony thru the reception.
Im a little concerned about memory and I dont want to buy another card.

Thats the latest on the Big One.
 

Yah, I suspect I will bring my laptop along.

The sort of hick up in the giddy up is that this whole thing will transpire in California in the middle of my vacation. So I will have vacation photos also.
Eek.