So, what I'm mainly looking for are books on the Macedonian Wars. I have "The Poison King", by Adrienne Mayor, so I actually have the Mithridatic Wars down. But I'm sorely lacking on the Macedonian Wars, the Gracchi brothers, Marius and Sulla, Pompey's conquests... pretty much everything up to the First Triumvirate.
Ab Urbe Condita is always a brilliant primary source for the early histories of Rome.