If my PC can start from an USB device as primary device already in the bios, is it sufficient to install Fedora on my USB external drive??
And if I connect it before firing the PC, I start in Fedora otherwise Windows?
If I remember rightly, the FC3 installer will not install Fedora on to a USB disk.
See: http://www.redhat.com/archives/fedora-list/2005-February/msg01211.html
It might be worth giving "expert" mode a try though.
Paul.