I wholly support the initial MS plan of no browser at all, and no ballot screen. After all, without IE installed to begin with you reduce bloat once the user chooses to install FF.
But... but, how does one install FF without another browser?
Well, friends, I believe MS still bundles an FTP command line client.
It's pretty straight forward, actually.
start -> run
cmd
ftp
open
ftp.mozilla.org
anonymous
my@fakeemail.com
cd pub
cd firefox
cd releases
cd latest-3.5
cd en-GB (or other language of your choice -- user freedom at its finest!)
bin
get Firefox Setup 3.5.1.exe
Voila. This is, I believe, what the EU had in mind.