Your best bet to choose a name is to pick a first and a last, ie. Delilah Tempest, Gina Lee etc. While it won't prevent someone else from trying to knock off your name, it does make it a lot more obvious. Just note the rash of Julias and Nikkis. Another thing it does is prevent being "number two" ie, Nikki 1 and Nikki 2 or worse having your name identified with an unflattering adjective such as "old" or "fat". Us men are not known for assigning flattering nicknames, just look at what we tag each other with in real life.
rickoshadows