Sharing Internet Using Macbook Pro

I'm using Macbook Pro 15" with OSX Lion. I'm wondering if I can share internet using my macbook.

What I want to do is, I have access to wifi and I want to share my internet to other desktop computer by plugging in a network cable between my macbook and a network switch/router. Is there anyway that the desktop computers that plugged into that network switch/router can access to internet?

Let me know if I don't explain myself clearly! Thanks!!

Doesn't your wireless access point have an RJ45 connector ?

Also, I am not sure of your intentions.

Cheers ... McBie

Sorry for getting back so late. I'm not sure what RJ45 connector is...

RJ45 = ethernet.

Network sharing is easy and is setup in Sharing prefs.

Yes, multiple other computers can receive wifi internet via sharing.