I'm actually fairly heavy. I'll
PM specifics if you're interested. That 770 is working weight, though. I've never tested my max on anything, although I want to see just how much I can squat in the near future.
As for what got me into powerlifting, it was partly realised that I needed to do something physical before I got too out of shape. I stopped rowing ages ago now. I hate all forms of cardio, which ruled out most of the usual activities, and I wanted something solitary that I could do on my own schedule, so organised sports were out. Beyond that, I want to get really fucking strong, at least in part so I can throw girls around the bedroom without breaking a sweat. No joke.
Anyway, if you're looking for a way to stay on track, are you on Fitocracy? It's helped keep me accountable.