Wow. Sorry to see that you were injured. I hope you recover fully and quickly.
To stay in shape, I run quite a bit, and i think about my feet a great deal, especially when they bother me. Even the best boots can't protect you from everything. I never hesitate to spend the $$$ on good boots.
An emergency room surgeon was asked what protective gear motorcyclists should spend their money on. His first answer was helmet, with the second answer boots, with boots being more important than leather jackets and pants. I can't find his explanation now, but it made perfect sense. I believed it, and bought some Sidi Combat touring boots for the street bike.
An article on dirt bike boots (a bit dated, but good nonetheless) can be found at
http://www.teamorthopedics.com/boots.html
Best wishes for a fast and full recovery.
blitz