@Managarm
I don't know why No one has mentioned this (Someone sort of did) but Why not get Amiga OS 3.1 0r 3.9 on your PC? especially on the Pentium 4.YOu can run an almost )S4 like Amiga OS 3.9 through Amiga FOREVER (WinUAE with legal ROMS and OS)
Dude.just get Amiga FOREVER CD from Cloanto..it boots straight from the CD. I actually attached my REAL AMiga IDE harddrive to my PC and ran it through WinUAE and copied all the partitions.and now I have an exact copy of my REAL Amiga Harddrive on my PC and run the Same Amiga OS and applications :-).it was a 2.5gig HD.I can also burn this HD to a CD for backup :-)