Hi guys
Just looking for some help if anyone can

Currently the system is as follows:
A4000, CSPPC, CVPPC, Deneb USB, ATX power supply - running OS 3.9 (mostly) and OS 4.0 (rarely)
I'm seriously looking at the current Mediator 4000Di with Radeon bundle from Elbox but, after looking into it further, I don't know if it's such a good idea.
What I'm hoping to do is to get the Mediator and use the Radeon with DVI output in 3.9 and a Voodoo 3 I have lying around here in 4.0. I would also like to get a compatible USB PCI card (with drivers..I hear there is a problem with Poseidon and the Spider).
If I can manage that I can pull the Deneb and CVPPC out and stick them into my spare 4000 so she's a decent machine.
I don't think I've got any issues with the Radeon or Voodoo..that seems clear enough. The issue I'm concerned about is the USB. Questions I have in this area are:
1. Should I buy the Spider or is that dead hardware really? I need keyboard/mouse support and USB stick support would be handy.
2. If not the Spider what card is compatible and with what driver?
3. If neither 1 or 2 and I have to leave the Deneb in with the Mediator will the machine operate? I've read posts on other forums saying that with a Deneb and Mediator installed the machine won't boot
And on another non-USB related note:
1. If I use the Radeon or Voodoo in 3.9 and fire up a game is it possible to configure the native screenmodes to come out of those cards or will I still be needing my KVM?
Any help appreciated as this is my first dip into PCI based Amigas and, quite frankly, I'm clueless and don't want a 280 Euro lemon

Cheers