Shakespeare.
MBP - Hamlet (with drives: Hamlet (OS X), Horatio (Win7), Claudius (Time Machine) and Ophelia (General external storage))
Mini - Macbeth (Macbeth (internal
SSD) and Banquo (16GB SD card)
iMac - Romeo and Juliet (Removed the optical drive and use two 160GB drives that are limited to 128GB a piece. RAID'd together to form Benvolio)
Usually I name the machine after a play, and the main boot drive after the main character. Macbeth fits in well as it's a short play.
Vostro A90 1.6GHz/2GB/32GB SuperTalent 10.6.6
Mid 2009 MacBook Pro 2.8GHz/4GB/1TB+500GB, 10.6+Win7
Mini 1012 1.66GHz/1GB/160GB Win7 Pro