Chiron
(KYE-run) Mythology: Chiron was a centaur, also a physician and prophet of Achilles (as in "heel") and Jason (as in "and the Argonauts"). When he was wounded incurably he gave his immortality to Prometheus before he died, then Zeus turned him into the constellation Sagittarius. It is a good name, has a great meaning with a masculine sound and is unusual without being really wacky.