I've only personally been to the Oxford and the Clermont Co. base. In Oxford the barracks and main base are used for storage and feature radio towers and equipment used by the University. One of my best friends and coworkers is a former campus police officer up there. According to him the missile storage area is where they have their shooting range. The former underground magazines were flooded when the ordinance was removed.
Seicer and I went searching for the one in Clermont this past December. The barracks and base are in excellent condition (I have some photos around here somewhere), but the place is sealed up tight. One weird thing we noted was when we arrived at the base earlier in the morning there was a phonebook and newspapers dropped off behind the padlocked gate. We came back later with the intent of getting around the fence, but the phone book and newspapers were gone...so we assumed someone was watching the property/regularly visits. The missile storage facility here is no more, it's now a scrap yard for some business.
Never made it to Wilmington, but the guy from
www.illicitohio.com did. There's some stuff to see there. Here's his site:
http://illicitohio...ilmingtonnike.html As for Indiana. I've never really taken the time to locate it or travel to it.