>>whereas it looks like it'll cost about $150+ to build a m0n0wall box
from the WRAP board.
Maybe for a WARP board...but do you really need this?
There is a poster here name Ed. Who has purchase the Soekris board off
ebay for around $25-30. Search ebay for soekris 4501 or 4521. I don't
know if the power supply or compact flash was included though.
Or you could use a low-end Pentium. Old hardware which could be bought
for less than $50 and doesn't need a Keyboard, Video, or mouse. Just
an extra NIC.
I really don't think you have to spend $150 for a m0n0wall solution...IMHO.