IŽll start with mine, "tonaiden" is the mix of my nickname "tona" and iron maiden, one of my favourite bands.
I can imagine why Dallas, or one the fedfan/federerthebest/rogerrules etc...but yours?
Soooo, you don't believe that "Dallas" is my real middle name?
Yes, I'm fron Dallas and currently living in Dallas...so...that's the name I picked! Actually, Scott gave it to me when I use to have dial-up and was not a member of the forum yet. He could see that my dial-up was coming from Dallas and when I decided to join the forum he said he just thinks of me as "Dallas" since that's where my dial-up originated from...hence, the name!
Of course I have other names on other forums too.