Hi Ken,
We use one of these for our tradeshows, has been very reliable.
http://www.officeworks.com.au/retail...ess-G/SYDIR600
@ $66 it is good value. Took me all of 5 minutes to learn how to set it up, but it might take you a bit longer
Not the lastest and greatest tech, but it is faster then your broadband.
It has one ethernet port that connects to your broadband modem, then 4 others for your "internal" network along with your wireless.