Registration gave me a real problem here unfortunately, hence why I have such a stupid username.
I usually go by Duke but I understand if it's taken. I've tried -Duke- which the registration process won't allow for - which kinda sux but I understand if your stuck with it.
I did however try other usernames such as alterego, d00k, sirapnek, dOOk, Dwoing and futsbuzle to no avail as they are all taken. All in all, I think I tried close to 15 or more nix before I got stuck with n00bem lol.
Anyway, if all the above are taken then I'll need some help removing my foot from my mouth.