I've always heard Alberts' Molecular Biology of the Cell touted as the "bible of low-level bio", can you weigh in on that?
But you'll need to look for the books that are being used today because I was in school 15 years ago, and a couple things have occurred since then. RNAi wasn't big when I was in school for instance even though most of the labs knew of it, CRISPR was not even on the horizon (although you can understand how it works from a typical undergrad textbook).