The ultimate SD/FF would also have be true 24bit. The external SD/FF I have is 12bit only, that makes AGA look "blocky" on my monitor. Also, it would be nice with higher rates than 31KHz to get the display more steady.
Like the PicassoIV SD/FF, right?
And a passthruough for gfxcard. Would be nice too.
Price? Hmm... Im not dreaming, this wouldnt be mainstream off-the-shelf hardware, so 250 - 350 USD, maybe...