Help setting up website on my iMac

Hello,

I have recently begun playing around with hosting my own site on my iMac. I have turned on the apache server and put up a test page to notify me when I have done everything I need to. I am running a router and I was hoping someone could help me set it up so that when I access a certain port it gets redirected to my iMac public folder and services my website.

Follow this lead regarding port forwarding;
http://www.mac-forums.com/forums/showpost.php?p=167572&postcount=4

This thread talks about changing the port Apache communicates on if your ISP isn't allowing the default port 80 through.
http://www.mac-forums.com/forums/showthread.php?t=1884&highlight=redirect+port

For more you can search the forums for "port forward" and find reasonable hits.