Let me help fix this C=USA disaster...but you must help me too!

[B00tDisk]

3. Windows XP (or 7 if you really want) with Amiga Forever.

A few points:

You can't buy XP any more.
All XP support stops in 2012 - it will become a vulnerable sitting duck.
Toni Wilen, WinUAE author, pushes on to newer versions of Windows as soon as they come out.

[B00tDisk]

If I was going to buy a dedicated AROS box, I'd just buy my own mini-ITX and put it in a micro-tower dealie so it could sit unobtrusively on the desktop.

I don't like "wedge" computers and never have.  I tolerated it in the Vic, '64, '128, 500 and 1200 because it's what I could afford.  Once I had a PC I could expand, I never wanted to look back.  Still don't.  I think wedge PCs are shyte.