this (http://www.amazon.co.uk/Radical-Enlightenment-Philosophy-Modernity-1650-1750/dp/0199254567/ref=pd_bbs_sr_1/026-2587605-4347609?ie=UTF8&s=books&qid=1194383969&sr=8-1) is the book on spinoza et al. i read in a 17th c. history seminar. as the title suggests, it's not exclusively about him, but rather his place in the context of the broader enlightenment.