I like "Monty" for a ball python. (as in 'Monty Python' for those of you who don't get it!)
Also, I like the name "Ezme" for a snake (I had a Brazilian Rainbow Boa named Ezme). I stole it from the snake in the movie "Foul Play" (one of my all-time favorites). "Ezme, you get away from those cookies!" - Mr.Hennessey