Wireless MacBook to iMac Conneting Problems

Hi there,

I'm trying to connect my MacBook to my iMac wirelessly, but I'm battling to do this. I can create a network and have both machines connect to it... but I can't mount either HD on either machine's desktop or see it in the Network window.

How can I connect both machines up so that I can copy files and things across wirelessly, and, use my iMacs internet access to surf the net wirelessly on my MacBook?

Appreciate any feedback i can get.

Thanks guys.