oh i forgot....
i have a very similar laptop (R3440CA) which had the exact same wlan card.... on an AMD 64 arch
i run gentoo and needed to get the windows 64-bit wireless drivers and use a package called "ndiswrapper" to run the windows drivers is a linux environment.
That being said, it has ususally been hassle free, though some times it will refuse to change essid which is a pain in the but....
I am not sure about how one would get this package in debian as I only use knoppix as a boot/rescue CD.
Just out of curiousity, what are your laptop specs......

mine AMD 64 3000+
80GB HD
1GB RAM
nvidia go 64MB onboard video
broadcom 802.11/ g-b