>Well, you are welcome to build one and write drivers for it.  :)
>It's not something that we can expect the average user to possess
>though

Well am I right if I say, build an ISA/IDE bus then 1. you don't need
drivers for the ISA bus just the hardware sitting on it. & 2. The IDE
part is standard tech. so use the standard IDE drivers ported to SH4.