Okay, this may work, and its also a PITA but once its done, its done...if you boot Ubuntu off the flash drive in a live session, you'll be able to load the wifi drivers. Jockey finds the Broadcom hardware and you can install the restricted package off the live distro. Once you instal thoughl, as you know, Wifi isn't recognized and you can't get at the driver. But, from that live session, you should be able to download the required packages ( "bcmwl-kernel-source"and its dependencies) to flash media using your live session wifi connection. If you download only, then install Ubuntu to disk,you can then install the downloaded packages via Synaptic after adding your flash media as a package source. I've done it before that way to move update packages over to a box with no internet connection, and I'm guessing it would work here with the Wifi?