It's getting dark sooner these days and we're all going to be needing lights in a while. If you're new to commuting and want to bypass that feeling of "gee, it's awful hard to see now" as it gets darker out it would be a good idea to get some lights sooner than later. Especially when you take into account the research that involves reading the endless debates about what kind of lights and batteries you need, where you're going to mount them, the shipping time (especially important if you're going to be buying from Fastech or Deal Extreme) and the possibility that you may have to wait for the supplier to replenish their stock.