@ Jan
I've heard some crazy stuff in my time said about the Amiga but you sure take the biscuit...

Logic Audio, Final Cut Pro, Maya, the whole Adobe Suite & After Effects (running on
OS X!) are essential. For Nuendo, Samplitude, AutoCAD, gaming and XBOX360 programming
a Windows 7 System does fine - no let me rephrase - is much recommended. 
If people want to work as professionals in the media industry they need to use the
professional software at hand. Even if there was a brandnew realtime OS with never
heard of resource and task management it would be useless from the perspective of
someone who works in such an environment and has to exchange work with others.
If you really want or need/need to use the programs you mention then use them on a PC or Mac or whatever machine they are written to run on. The Amiga has it's own software for doing such things and I don't honestly think that any Amiga user would actually even try to compare the old software they use against modern PC/Mac software. The Amiga may no longer be used by professionals anymore for such tasks but that's what a PC or Mac is for.
A PC can run emulation of an Amiga, but why on earth would someone want to emulate a modern day PC or MAC on an Amiga or run Windows or Mac software on it. The Amiga is what it is, a machine used by most of us left who still actively use it either in hardware form or emulation form for the fun, enjoyment and nostalgia of something that was and still is that wee bit different.
If someone does create and build an Amiga that does run Windows or Mac software then I for one would not be buying or using it, what's the point, if you want to use Windows software buy a PC if you want to run Mac software buy a Mac. If you simply want to run all your old Amiga software for what it does then invest in some old hardware or run an emulator.
The only thing lacking these day's with the Amiga is trying to keep things like memory cards and HDs CD/DVDs up and running but that's why their are still some folk constantly working on ingenious solutions to these problems not to mention all those who work on things like Aros or MorphOS.
The best thing to happen to the Amiga would be something like the Natami which is supposedly going to be 100% backwards compatible but running at speeds never before seen on an Amiga and hopefully the ability to be able to use things like SATA HDs & DVD drives.
I dream of such a machine, but I certainly don't want to run Final Cut Pro or Photoshop on it, I'd be perfectly happy running the likes of ImageFX at an almost realtime speed and all my other old Amiga software and either writing my own software to take advantage of it or using software that other folk would no doubt write to do the same.
The day the Amiga becomes nothing more than a machine for running Windows or Mac software will truly be the day the Amiga dies...
