I had OS3.9 on my Amiga 2000 (I had two working Amigas at the time that I bought my very first NON Amiga computer). And I got this Dell Laptop in fall of 2002 because I had seen the Amithlon and loved the idea of a portable Amiga.
So, I immediately made my Dell multiboot. I put Red HAt and win2000 and then put WinUAE using my OS3.9 files and programs. That setup worked great for many years. At some point a friend helped me copy my files to a larger HD so i could have XP and changed my Linux to Ubuntu.
The Dell lasted until last summer (the screen died). So when I got a new laptop I kept the win7 and put AmigaForever on it and installed Ubuntu 10.04
I am in linux 90% of the time and never go online in win7 which is mainly used for AfterEffects.
this setup works great for me.