Great story Al.
I've had a couple of tarantulas. They are fascinating creatures and make great pets (no noise, no smell, need fed once a week, clean up after themselves, great "WOW" factor) as long as you get a species that is docile, slow, and can be handled easily.
My last one was a bird-eater, that had a leg-span of over 10 inches (only one quarter inch long when I bought him), but he couldn't be handled because he was from a very agressive species and blindingly fast.
Your birds would have been okay unless the spider was one of the bird-eating variety (Expensive and somewhat rare).
BTW, anyone thinking of a tarantula should get a "Starter" species that is easy to handle and take care of. Never buy one of the agressive species until you have had some experience.