To get the current b43-pci-bridge setup working the OP is probably only missing the b43-firmware AUR package, see here: B43 driver seems to be installed, but no place to check "enable wifi" in new install? - #43 by 6x12 .
To get the current b43-pci-bridge setup working the OP is probably only missing the b43-firmware AUR package, see here: B43 driver seems to be installed, but no place to check "enable wifi" in new install? - #43 by 6x12 .