I take it all back, according to /var/log/messages it still can't
load any
firmware, specifically it wants /lib/firmware/bcm43xx_microcode5.fw.
fwcutter didn't produce a file by that name. Am I missing a step?
I've found a tarball via Google search that had the files I needed.
I'm still curious though on how to get there myself in the event I ever need
newer firmware.