You might want to check this out. I think that the actual base station is the best solution. I have it running at home using PPOE for my DSL and at work connecting me to my lan.
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http://docs.info.apple.com/article.html?artnum=106507
AirPort Software Base Station is not a feature of...
This is a graphical utility for configuring cron jobs. You will still need to know the cron terminology, but it makes it so much easier.
http://www.koch-schmidt.de/cronnix/