linklist: interfacing 8-bit computers to IDE drives
the Z80 project » ide interface
http://www.retroleum.co.uk/z80-ideinterface.html
Apple II IDE/ATA interface
http://s.guillard.free.fr/Apple2IDE/Apple2IDE.htm
Connecting IDE Devices to 8-bit Machines
http://www.mylinuxisp.com/~jdbaker/oldsite/SmallSys/8bitIDE.html
GIDE - The Generic Z80 IDE Interface
http://www.gaby.de/gide/GIDE.txt
How to connect an IDE disk to a microcontroller using an 8255
http://www.pjrc.com/tech/8051/ide/wesley.html
IDE interface for Z80/Z180
http://home.swipnet.se/~w-68269/ide/ide.htm
Also relevant: The Semi-Virtual Diskette
http://www.rothfus.com/SVD/index.php