I recently installed Debian on my Lenovo Thinkpad 430u (which now dual-boots Windows and Linux). Everything is working successfully except for the network connection. My wireless network controller is a Broadcom Corporation Device 4359, which apparently (according to a few forums I've visited) doesn't play well with Linux, although most of the time it is possible to configure the system in such a manner that network access can happen. When running the lspci command, I find that my machine does recognize the existence of this wireless device as such, but doesn't give any information about drivers (which perhaps I need to install separately). Anyone have any advice about what I should be doing next? I apologize for any blatant ignorance; I'm a little new at this...

You can find some information about the chip that reports as "14e4:4359" here, assuming that that's the same one you have:

http://linuxwireless.org/en/users/Dr..._and_b43legacy

The Linux Wireless folks report that they haven't tested it, but that the "wl" driver would be the appropriate one.

There's more information in the LQ sticky on Broadcom wireless, though I don't think that, in this case, it will break any new ground for you.