Each year, usually around mid-July, we host an event affectionately dubbed "Newbie Night".
Designed for the first timer, this forum will cover the basics of getting to, and surviving on the playa, followed by a Q&A session. Usually there are drinks. Sometimes there is fire. It's always a good time, and a great way to meet some fellow travelers and learn a couple of things. Historically, there have also been a few folks running freight service, and this is a great time to meet them and reserve a spot for your gear.
Some good resources/ starting points:
The Official Burning Man Survival Guide - required reading, even for non-n00bs.
The Official Burning Man First Timer's Guide- chock full of important stuff.
Sample Packing List- Compiled by Stich, this list is freaking amazing.