I'm a bit of a novice with InDesign and your help would be much appreciated!
I went to View > Guides & Grids > and selected Snap to Grids and Snap to Document Grids but my text boxes/images/etc. won't snap and give that center line that helps align the object to others.
How do I turn these on?
Also, I have a Mac OSX Lion if that helps.
In the Guides and Pasteboaed section of the InDesign preferences make sure that all the boxes under Smart Guides are checked. Then also make sure Samrt Guides is checked under View > Guides and Grids.
A word of warning about snapping to the document grid... you may find it interferes with easy snapping to objects.
Snap to Grid interferes with Smart Guides. Have either on; but not both.
On second reading of this, it sounds like you want Smart Guides on; not snap to grid. Smart Guides gives all that visual feedback that you are asking for.