An Amiga "cube" capable of recording and playing back as if it's a virtual VCR.  Hardware-based encoders/decoders, mediator (or similar) type PCI.  Would it sell?
Another model would be a mini-ATX Amiga system with a black case.  Kinda like a 3000 but with A/V RCA ports.  Both models should have space for a modem and an ethernet port.
 :-)