is there a way to prevent facebook friends form seeing my entire wall?

[Colleen]

Go to your profile page, and underneath the status update bar, click Options. The Options link will then change to Settings, click on that. Scroll down on the new page, and there will be a question saying "Who can see posts made by friends?" Click on the options list, and choose "customize" and you can type in who to block them from. You can also do this just with your status updates. Next to "Share" on your status update bar, there will be little lock, click on that and a menu will scroll down. Again, click customize and choose who to hide them from. You might have to do this for each status.
That's the closest you'll get.