BlueFury BF1 and Mac OS X
You can use bfgminer or the FPGA/ASIC window in MacMiner without removing parts of Mac OS

http://fabulouspanda.co.uk/macminer/

you can download just bfgminer and/or cgminer compiled for Mac OS X here:

http://fabulouspanda.co.uk/commandline/

Then you won't have to kextunload every time you restart your computer.