12 Oct 2007 at 01:04 - 3
First of all, I would recommend getting reputation from every race, because you might want skills from more than one race. You need to have 8,000 reputation points to craft consumables (special 1 use items that provide a bonus while adventuring), 16,000 reputation points to craft weapons, and 26,000 reputation points to buy that race's armor.
There are also special skills available from each race. Instead of using your attributes to determine how strong they are, they use the appropriate reputation as their attribute.
Also, after you get 1,000 reputation points, you can talk to certain NPCs to get a bonus whenever you wear the title (that you get once you hit 1,000). The Norn title grants extra health, the Asura title grants extra energy, the Dwarven title makes you steal health from Destroyers whenever you use a skill on then, and the Ebon Vanguard title gives you armor against Charr, increased adrenaline gain when you hit a Charr, and give you 2 energy whenever a Charr near you dies.
Hope this helps, and enjoy!