FirstSearch is a collection of more than 50 specialized databases, quite a few of which are potentially useful for work in Biology. The Liberty menu (via 2. Commercial Databases) allows you to connect, but we should first consider which are the most likely databases, and in which order it would make sense to search them.
One important change since last year: you can have FirstSearch records e-mailed to you. In cases where the records include abstracts this can be extremely useful, and you should be sure you know how to print (and/or extract and save to disk) items you have e-mailed to you.