So...instead of bringing the whole machine down (with its 40-day uptime) and recompiling my kernel from scratch, I just went into the kernel source, added the two options I needed, compiled them as modules and loaded them.
Bingo...instant CD burning capability.
Kernel modules are cool.
For the less technically-inclined amongst my readers, keep in mind that doing anything similar in Windows would require a reboot. In Windows, you'd bork the system if you tried installing a driver and using it without rebooting.