Z80

Hello, denizens of /prog/! I wish to program the Zilog Z80 microprocessor. How does one acquire such a skill? Are there any Z80 programmers out there who can impart advice, or perhaps the title of a useful text? Many thanks, teachers and fellow pupils.

zilog.com
They have cheap demo boards available (mouser.com digikey.com) for like $40, comes with a C compiler and everything.