Wireless Network

ASUS WL-530g

Just get this tiny device, the manufacturer called this a "Router + Wireless Access Point".
ASUS is clever, this device make use a bunch of Open Source software that distributed under the GNU General Public License (GPL) (so that they can pay less effort to make this device), that's why, you can find the source code of the firmware of this device on their supporting pages.
Actually, I would prefer to treat it as a tiny Linux Box, it runs Linux, make use of netfilter, zebra, rp-pppoe, etc. I wonder if there any method to "hack" into it and add more features to it ;P