I helped my brother build his Commando-based computer in February.  We
chose it mainly because he wanted onboard sound, but we didn't want the
drag on the CPU that most onboard sound solutions cause.  I believe that
the onboard sound being in a slot allows more processing by the card
which, in turn, reduces some load on the CPU, but I can't be sure about
that -- i.e., I've never seen it officially written that this
onboard-sound-on-a-card solution decreases CPU loading.

The LCD on the back panel seems a nice idea, but when our PSU failed
prematurely, we found that the displayed message was absolutely useless
in troubleshooting.  It may work better for other problems, but that's
the only one I'm able to describe.

The heatpipe cooling works beautifully and allowed plenty of room for a
large heatsink (Thermalright 120 in this case).  The supplied BIOS had
no problems at all.

The machine is running both XP and Vista Business in a dual-boot setup
without any problems at all.

Coupled with an X1950 Pro and an X300, it's running a 22" widescreen, a
19", and two 17" monitors for his software development work.

If I were to build a new computer today, I'd probably go with a board
with a P35 chipset, though.

Ron