Thanks Terminator for the advice - the radiator itself doesn't look to be leaking. I plan to jack it up over the weekend to get a better look at the belly of the beast. Is there a plastic neck that is attached to the block that gets crumbled over time? I'll bet the hoses are original so maybe a good total hose replacement is in order for starters. What else should be replaced if I want to tackle the cooling system?

Thanks again for your help - greatly appreciated...