Basic Information from Blizzard regarding Night Elves:
The reclusive Night Elves were the first race to awaken in the World of Warcraft. These shadowy, immortal beings were the first to study magic and let it loose throughout the world nearly ten thousand years before Warcraft I. The Night Elves' reckless use of magic drew the Burning Legion into the world and led to a catastrophic war between the two titanic races. The Night Elves barely managed to banish the Legion from the world, but their wondrous homeland was shattered and drowned by the sea. Until recently, the Night Elves closed themselves off from the rest of the world and remained hidden atop their holy mountain of Hyjal for many thousands of years. The Legion's invasion brought the Night Elves out of their long period of slumber. They now have renewed interest in shaping the world, and for the first time are allying themselves with other races to insure the continued survival of Azeroth. As a race, Night Elves are typically honorable and just, but they are very distrusting of the 'lesser races' of the world. They are nocturnal by nature and their shadowy powers often elicit the same distrust that they have for their mortal neighbors.
Start Location: Teldrassil
Home City: Darnassus
Available Classes: Hunter, Druid, Warrior, Priest, Rogue
The TenTonHammer take on Night Elves
The mysterious Night Elves of Darnassus are now coming out and exploring the world, so now is a perfect opportunity to play as one of them. Not only does the race look nice as a model, but there are some nice effects one can get from going around as one of the elvish race such as the awe of people looking at your glowing eyes.
Night Elves start in Darnassus, which is quite a ways off from the cities of Stormwind and Ironforge, however taking a boat and making your way to true alliance territory should not be too difficult.
Links to information on other WoW sites
Blizzard WoW site - The official Blizzard WoW Night Elf information page.