Okay, here is what I did.

23:54:10.672 Patchbay deactivated.
23:54:10.724 Statistics reset.
23:54:10.757 Startup script...
23:54:10.757 artsshell -q terminate
JACK tmpdir identified as [/dev/shm]
JACK tmpdir identified as [/dev/shm]
23:54:10.790 MIDI connection graph change.
can't create mcop directory
Link points to "/tmp/ksocket-mikko"
23:54:11.307 Startup script terminated with exit status=256.
23:54:11.307 JACK is starting...
23:54:11.307 /usr/bin/jackd -R -dalsa -dhw:0 -r44100 -p128 -n2 -m

>> changed from ALSA to OSS

23:54:11.309 JACK was started with PID=5917 (0x171d).
jackd 0.103.0
Copyright 2001-2005 Paul Davis and others.
jackd comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details
JACK compiled with System V SHM support.
cannot use real-time scheduling (FIFO at priority 10) [for thread
-1210504512, from thread -1210504512] (1: Operation not permitted)

>> unchecked the real-time option

cannot create engine
23:54:11.412 JACK was stopped successfully.
23:54:11.412 Post-shutdown script...
23:54:11.412 killall jackd
jackd: no process killed
23:54:11.509 MIDI connection change.
23:54:11.618 Post-shutdown script terminated with exit status=256.
23:54:13.553 Could not connect to JACK server as client. Please check the
messages window for more info.
JACK tmpdir identified as [/dev/shm]

Now that I have Jack up and running, I get to experiment with how to get
stuff like Audacity and Ardour and other stuff like that to 'play nice' with
it. Any good tutorials on that (or some general guidelines if that would
get me off the ground faster)?