At the beginning of April, I picked up a book called "The New Rules of Lifting". I like it, because it explains how to do a variety of exercises of six kinds: squat, deadlift, lunge, push, pull, twist. Also, it describes a few programs, which I find very good for motivation as it gives you specific things to do on a regular basis.<p>When I started, I acquired a barbell, two dumbells, a swiss ball and about 80 pounds or so of plates. I quickly got a squat rack (just something simple; you can only lift so much up to your shoulders and drop it back down safely), but I only recently got a bench. I now have over 200 pounds of plates, which I got at a used-equipment store. I've found that you need a lot of weight for a) squats and b) so you can move from one exercise to another quickly without having to move plates from the bar to the dumbells.<p>I also got a "power gym": the pull-up device that hangs in a door frame. With slight modification to one of my door frames in the basement, I found it works pretty well.