I am trying to buy a steel Bianchi road bicycle for about $200.
Me too! Look on Ebay or Craigslist or Bike Forums Classified.
I would like to know what year it is from and the model to do more research on it.
Can't help with model but you can identify the vintage by using the information in
How Old Is My Bicycle?
I would like to know somethings I should watch out for or things to fix before they become problems later on.
Understanding
Vintage Bicycle Quality and well, take some time to look at other helpful articles and many of your questions will find answers. And, you will save yourself time, effort, frustration, error and cash.
And, if you can get away from the computer as a hunting tool, for a while, try these
Vintage Bicycle Finding Methods and you just might, with little effort and little cash end up with a pretty decent bicycle, such as this lovely
1976 Super Mondia...