I try to choose names which are somehow meaningful in a certain way.
"Aristos", for example, comes from "Areté" (ἀρετή) in ancient greek, meaning "excellence", "virtue", etc. Loosely translated as "The excellent one", or "the virtuous one", or simply "the best"

Egomaniac? Naw, I just started playing Genesis after thoroughly reading the website, which provided some insight as to the different guilds, and sought out a name which could fit into a specific guilds theme which I wanted to be a part of.
I try to use either greek, or arabic names. Other names I've used in other games are, for example, based on latin meanings, like for example: "Magnanimus". This one also hints at a delirium of grandeur, but it was just fitting for a mage class roleplaying a crazy wizard who put power and control of magic over his well being.
So, anyway...
Where did you get your name from, and what did/does it mean to you?