I like the name a lot!! I friends who have changed their names officially, or had stage names, pen names - so many different ways to do this.

In my opinion all the Cons may be valid but worth considering how each will actually affect you (drive you crazy or not) and remove any that won't really be a problem (i.e. ridicule of your name is not really valid in my opinion unless you are 12).

As for the Pros, the only valid one in my opinion is that you like it - that is reason enough. The others pros I feel are things that will likely not be completely fixed by a name change alone. That's my 2 cents worth :)