getting there. Need to sand a bunch, make a lid for the far side,
and get a thumbscrew for the right lid (it has a little storage
compartment to put the power supply/etc in).

Under linux, have the latency down to about 10ms, still working on getting it
lower and more robust. I like ALSA a lot compared to other audio APIs (god knows
waveOut and directsound suck for this sort of thing), though some things don't 
seem to work exactly the way I'd like...