Congratulations and thank you for your choice in World of Warcraft. I, as well as my fellow Alla-members welcome you to the boards, as well as your hopefully benefitial posts to the community.
I wanted to take a quick sidestep to make this because the holidays are coming to an end. Many PC/Mac users out there have received their brilliant goldish brown box containing installation CD's Authorization keys, and trials for their friends.
It is understandable that you are excited about joining in the revelry, and can't wait to start leveling, creating great characters, and having enjoyable experiences. Here at the boards we like to be a little regimented with posts.
If you are new to WoW or new to the boards; Please please see the sticky at the top of the Main forum lists. I also hotlinked it below.
FAQ New to WoW & boards
There is a massive amount of information here, leveling, instances, classes, builds, items etc. The only stipulation is that you may have to do a small amount of digging. You also may have to take a little time getting used to the site format, and how to find the information you are looking for.
It happens every so often, however I wanted to make this post since the holiday has just passed and there is bound to be an influx in new players.
Take your time, read up, and have fun.