I've yet to name my P5 after a couple months of ownership. I'll wait till something comes to me.
I named my first car Roxanne('79 Z28) the night I got her. Then I named my old Corolla "The Vibrator" shortly after I got it. It needed new motor mounts and vibrated heavily till I replaced them.
I call it Mistress. Cause that's where all my money goes.
That and my ever evolving computer.
AMD 5600+
Gigabyte S4 motherboard
2Gb of RAM
150Gb Raptor HDD
500Gb Western Digital HDD
160Gb Western Digital External HDD
ATI 4670 video card with 1Gb of dedicated RAM
Dual Monitors: 22 inch Samsung and 24 inch Westninghouse LCDs
Logitech 2.1 speakers
etc...