I saw the "$" dollar sign and just assumed USD. Sorry!
the one driver i would of liked to see was for the mpeg/dvd decoder cards...
Any old style mediator can be hacked to use 3.3v if you are using a atx psu with 3.3v .. i simply ran a wire to the baqck of my board to the proper place on the slot, i run a 3v radeon in my mediator pro tower.
the new boards must simply use a vreg or more likely dc-dc comverter to make 3.3v from 5v rail.
you could also build a small regulator board to do the same if you only had the original amiga psu.
Also the reason i suggested we get pci-e is just for futureproof...and usb3 might be available(but not its full capable speed of course).
The mediator could of had a flashrom on it that installs itself with pci.library etc like any zorro card i would imagine, i always wondered why this was not done- It would of made the pci cards bootable and available at boot time.
I wonder if it would be possible to put the mediator stuff in the deneb flash rom or a eflash,romy,etc?