Sure thing, Duke.
There are probably several ways to handle that request, but one is to look at some photos in Navsource. Remember, we can't link directly to Navsource photos from here, so I will take you to a page and try to describe the correct picture to look at.
Original rig (5" gun, ASROC, no CIWS or Harpoon)
Look at the page for O'Bannon (DD-987), http://www.navsource.org/archives/05/987.htm, second image down from the top.
Late rig with Tomahawk Armored Box Launcher:
See Leftwich (DD-984) http://www.navsource.org/archives/05/984.htm, the photo marked "July 1986, location unknown", is best to see the ABL, as well as all the other post 1985 photos. The Comte DeGrasse (DD-974) page shows Comte DeGrasse along withbattleship Iowa and DD Deyo, where both DDs have the ABL.
Late rig with Vertical Launching System (VLS)
See O'Bannon again http://www.navsource.org/archives/05/987.htm, and look at the fifth image down from the top to see the VLS farm that replaced the ASROC launcher and see the CIWS gun. Also Stump (DD-978) http://www.navsource.org/archives/05/978.htm has a great VLS image in the middle of the list.
Also, there are good photos of the Radford (DD-968 ), with her mast enclosure at http://www.navsource.org/archives/05/968.htm
All ships got the Harpoon canisters in mid-career.
One excellent photo is on the page for Cushing (DD-985) at http://www.navsource.org/archives/05/985.htm in the middle of the page, marked "040506-N-7586B-085, Gulf of Oman May 6 2004". You can see the Harpoon launchers especially well here.
I hope that helps,
Rick