Theres this whole odd thing going on with mediator and drivers and stuff right now...
Maybe the prometheus? IIRC it supports open PCI?
Patrik would know...
Thinking about it, he knows waaay too much....
/me looks around with theatrical slyness..
Seriously though, I don't doubt its possible to get better transfer rates over PCI than the 1200 IDE but it would likely be very CPU hogging all the same.
If you want low CPU overhead DMA transfers on A1200, SCSI is still the best way to go (and add a few IDE drives with a bridge) for now, IMHO. 10Mb/s sustained transfer is feasable if phase 5 SCSI controllers live up to their specs.