* Is the ticket currently in hand? Are you entering with everyone else (when Gates open)? If yes, you're fine as you are. Guard it with your life.
* Is it Will Call, singular, in your legal name? You need state I.D. and
a confirmation number.
* Is it Will Call for multiple tickets? You will need state I.D., a confirmation number, and the assistance of the person whose name the tickets are in. This
is a situation where entering with the person in charge of the tickets is actually helpful, although if they're sharp, it's not necessary.
From the Ticket FAQ: http://tickets2.burningman.com/faq.php#pickup
If you need to give your tickets to multiple people, we suggest you have the name changed to the person who is arriving first and it will be that person's responsibility to place the other ticket(s) under the other names. This can get messy so you need to be sure you can trust the person who is picking up the tickets first.
* Are you expecting early entry? In my experience, this requires a printout with a code. I would be very hesitant to travel early without a piece of paper allowing me early entry. Perhaps there are those who do just a list, but it's too early in my history of volunteerism to know.