How do I see "Macintosh HD" in Lion?

Have you checked to see if you have it checked to show in Finder Preferences? (Hard disks, external disks, etc)

Finder > Preferences > Sidebar

Make sure “Hard disks” is selected under DEVICES. If it shows a “–” then click it a couple of times until it shows a “✓”.

"Sidebar" does not appear in my Preferences window.

Which OS version are you on? Here is mine (10.7.2):

I got it now. I was looking in system preferences.

Thanks!

No problem!

I am on 10.7.2 and I do not have a finders preferences, how can I pull up the option to show the Mac HD? the only things I see are view, action arrange, new folder, and delete for any and all finder windows. PLEASE ADVISE!

Move your mouse up to the menu bar - now, can you not see this (you need to click on the Finder and then Preferences):

And, when you click on Preferences, do you see this:

Make sure to check settings under both General and Sidebar........

And, then, go to View menu and down to view options if you want to adjust/personalize the view:

Thank you for this it helped me perfectly.

You're welcome and thanks for the feedback!