1. ATX, micro/mini/femto/whateverATX. BTX. Whatever standard formfactor(s) you think people want.
2. Whatever the user chooses to install.
3. No. Zorro is a deprecated antique custom interface which costs extra money only for the "benefit" of using deprecated antique custom hardware. If you want Zorro, use an Amiga or build a PCI-to-Zorro adapter instead.
4. No. See 3. Use an Amiga or a Catweasel if you're not happy with PS/2/USB peripherals.
5. Current keyboards use USB and/or PS/2. So, USB and PS/2.
6. Whatever the stores sell and the user chooses.
7. Huh? An AGP and/or PCI-X slot should take care of that. If you must have onboard graphics, pick something mid-range from ATI or nVIDIA.
8. Whatever case the user chooses.
9. If it's much more than $1000 for a complete computer comparable to an up to date PC, then don't bother.
10. Who cares? Blazemonger? Trogdor? If you're gonna call your motherboard/computer/whatever something with "Amiga" in it, you need to own the trademark or get permission (license) from whoever the owners will be in 2104 when the project is finished...
11. Two existing and unrelated trademarks from two different companies? Not the brightest idea.
12. The Amiga is dead. If you're not planning something innovative and brand new (Zorro? Amiga mice?? PowerVR??? Sheesh.) that will offer any advantages to and STAY ahead of the rest of the hardware market, then let nVIDIA, ATI, Apple, Asus, et c. run the hardware race and sit back and enjoy the ride.
If I had a couple of hundred million $ laying around, I'd spend it on vintage cars, a collection of experimental WW2 German armour and airplanes, and a moderately sized island in the Pacific instead.
