I think naming you baby Polo is a great name, I have a white boxer and we pondered over a name for day's, in the end we decided to call him bailey, as i love Bailey's cream.
My husband wanted to call him spook, and my daughter casper after the ghost. But decided that shouting spook in the local park could have it's downfalls. So Bailey it was.
When choosing a name it's nice to have seen the boxer first so you can fit a name to his character, so waiting till he's/she's home could be eaiser.
Good luck with your new addition, enjoy...