After sleeping on it I’ve decided to stick with my original resolve. The book I’m working through is Hands-On Unsupervised Learning using Python by Ankur Patel (an O’Reilly book) via Kindle. At least with unsupervised learning I don’t have to make decisions about what to use as targets (classes, labels, etc), and with PCA I can relax a bit about my feature selection/engineering. All very good for a person who has trouble making decisions (and sticking with them). So, a good book, an IDE and environment setup that works for this kind of stuff, example code downloads as usual with this kind of book, and I’m set for a couple of months.