Wow! I can't believe I just spent 3 hours reading this thread!
I found my username when I was doing research for my Sims 3 legacy family last summer. I wanted to recreate our family tree as much as possible. My mom wasn't much help as she didn't even know her own great-grandmother's name. So, I found it. Caterina Fideli. I fell in love with it!
Up until this forum, my username everwhere has always been Camile004. No, Camile isn't my real name either. I created it from the first two letters of my first, middle, and last names. It happened to be James Bond week on TV so instead of 007, I chose 004. Four is my fave number because I was born on the 4th.
Just a note ... I had a level 52 High Elf Cleric on Everquest named Camielle. I LOVE Sailor Moon and Avatar: The Last Airbender (which is one of the best written shows of all time, IMHO).