At first, I used Grandis to keep my professional self separate from my cosplay self, especially when I was a high school teacher, and the hobby might look a little iffy to people. (conservative parents? Not sure who I mean there)
Since becoming a college prof, I sort of use my real name and my stage name interchangeably. My boss thinks that my hobby is kewl, but the Japanese people I do business with wouldn't! Still, it's easy for them to go look me up and see that I do this hobby if they want to, especially online, so I guess I'm not all that secret.
You may well want to think about the Japanese anonymity factor when you head for Worldcon 2007. In Japan, this thing we do is a fetish. Really.
In the works:
Beauxbatons Original Design from Harry Potter: Goblet of Fire: 30 percent
Sparklypoo Hogwarts Uniform from Harry Potter Universe: 20 percent
Spoor from Crest of Stars: 0 percent