Asterisk Hardware

[sam at machine15.com (Samuel Donham)]

Has anyone installed Asterisk yet?  I know we were supposed to have a
speaker a few months ago, but he had to cancel last minute, and I have a
few questions regarding the hardware.  I'd like to set up a small test
system/PBX and was looking at the Wildcard X100P (since it's the cheapest
single FXO).
Has anyone used this card and is it sufficient enough for a single
connection to my analog POTS line?
I would also like to set up a SIP proxy using Asterisk and I'm assuming I
can just use standard ethernet NICs to do so?
Thoughts?  Suggestions?
Thanks to anyone that has done this before,
-Sam