Bianchi Girl is the resident Bianchi wizard (witch?). Give her the grainiest picture or a single original component and she'll give you a year and a model name. Let me know your size and I'll keep an eye out (you're a Bostonian too correct?).

There are a few catalog years here among a ton of other brands:

http://bulgier.net/pics/bike/Catalogs/

You really can't go wrong with many models, but the better ones will fetch more. You have to pounce, as you found out.