Kernel Recompile from 2.6.8-11-amd64-k8

[Robert Barber <rebarber@mailbox.syr.edu>]

I just installed my first 64-bit system, using a stock 2.6.8-11-amd64-k8 
kernel.  All of my hardware is working except for a DLink DWL-122 wireless USB 
adapter, which I've had for about a year and have gotten to work on two other 
Debian boxes by compiling linux-wlan-ng against the kernel source for a 
locally compiled kernel.

Here's what I have at the moment to build a kernel with through apt-get:

#apt-cache search kernel-source 
...
kernel-patch-debian-2.4.27 - Debian patches to Linux 2.4.27
kernel-patch-debian-2.6.8 - Debian patches to Linux 2.6.8
kernel-source-2.2.25 - Linux kernel source for version 2.2.25
kernel-source-2.4.27 - Linux kernel source for version 2.4.27 with Debian 
patches
kernel-source-2.6.8 - Linux kernel source for version 2.6.8 with Debian 
patches
kernel-tree-2.4.27 - Linux kernel source tree for building Debian kernel 
images
kernel-tree-2.6.8 - Linux kernel source tree for building Debian kernel images
...

Here's my sources.list:

#cat /etc/apt/sources.list
deb ftp://mirror.espri.arizona.edu/debian-amd64/debian/ stable main
deb-src ftp://mirror.espri.arizona.edu/debian-amd64/debian/ stable main
deb http://security.debian.org/ stable/updates main

My questions:

If I apt-get kernel-source-2.6.8, and compile it with 
/boot/config-2.6.8-11-amd64-k8, will I lose any functionality in the kernel?

I don't have linux-wlan-ng available through apt-get; if I download the source 
from elsewhere, will I be able to compile it against a locally compiled kernel 
with something like `make CC=gcc-3.4`?

Is there anything else that I need to know about compiling an amd64 kernel?

Thanks all ahead of time for your help.

bob Barber