My Windows PC is called
samsara (a Buddhist term for the endless cycle of birth, suffering, death, and rebirth ... which, if you replace 'birth' with 'booting' and 'death' with 'crashing', describes my experience with Windows to a T.
)
My Linux box is called
arianne, after a friend of mine. It's actually the third machine to have that name and probably the sixth or seventh OS installation that that name has carried through (I've run a few different Linux distros as well as Free and OpenBSD). The first was a 386 running Slackware... I needed a hostname for it, and I asked my friends on IRC, and a friend of mine suggested that I name it after her. So I did.