As you may know, the charger for bold 9000 is not like any other charger for other non BB phones.
It uses a standard mini USB charger, which was the standard when the now old 9000 came out.
Sounds like a dead battery. Have you tried a replacement battery for the 9000?
If you can't get a USB connection to any phone - with different cables - it is likely a broken port as you have figured out. Given the age of the BlackBerry it is probably not worth fixing; buy a new one. They are becoming very inexpensive.