armish systems: good for learning?

[William T]

I have decided to buy dedicated hardware to run OpenBSD. I am
considering buying an armish (or perhaps a landisk) supported network
device, but I don't really know much about them. Hardware availability
seems limited in the US.

I was very impressed by the Thecus N2100 armish system which has very
nice specs [http://www.thecus.com/products_over.php?cid=1&pid=1]. I
could handle opening the case, removing the drive, and installing with
dd. The x86 Mac Mini also seems practical, but it only has one NIC.

I would like a small form factor and energy efficiency. I would be
happy with a slow system, just enough to learn apache, BIND, pf with.

Are there any supported non-traditional devices that would be
worthwhile, or would I be better off getting a cheap small form factor
x86 PC? Also, am I sensible to desire two NICs? Seems like a good way
to practice routing, rather than using a boring one interface system
that "just works."

William