@HammerD
I too have a Prometheus, but you can really only use about one of the pci slots in an A4000D with a right angle pci adapter. The Mediator 4000Di seems a more elegant solution and does purport to have more driver support. The Voodoo3 setup on the Promi works well, but I'd like a sound card, ethernet, etc. and they just all won't fit in the stardard case. I know that a tower is an option, but I like keeping things as 'stock' (at least on the outside) as possible.
@billchase
true, a video slot would be nice. then again, there are only a few rare/expensive cards which actually use it...an external flicker fixer and switch box or second monitor work fine for the AGA modes if needed.