what's your problem? there is support for network and audio in the 2.6.2 kernel. the opensource network driver "forcedeth" has moved to the kernel sources. use them, they work great! (they are called "Reverse Engineered nForce Ethernet" now).
and for audio, use the intel i8x0, they work great too!
i haven't tried usb yet, but maybe someone else can help you out..