I picked up all the parts at Lowes, save the zip ties which I got at Costco. If you were to go out and buy everything you needed it would be around 20 bucks. If you already had zip ties however you could easily get this together for around 13 bucks. I don't remember what size chain I used, but I used 1/16th steel cable for the routing.

I would only recommend doing this if you have a disc brake or fixed. You could technically run it with caliper brakes but the cable+chain design had a tendency to move side to side. They stayed in place but they liked to get out of their alignment, hence the use of zip ties every other link to keep it in position. If you only needed to use these a few times a year, I think it's a good investment. The advantage to the all-chain design is being able to take it on and off more quickly, but I think it would be best to stick with the cheaper (and lighter) cable+chain design. It only takes about ten minutes to install it, so not so bad. I spent more time trying to find the cable and the chains than I spent putting it all together.

They work quite well, they aren't too bothersome on pavement. They give you a lot of forward traction on snow (soft and hard packed). I haven't had much of a chance to try them out on ice, but they did help me get up my icy driveway just fine. If I need to put them back on again this winter, I will update after I ride through some ice on purpose. I'm used to riding my road bike (rode it today actually) that I avoid ice and snow even when I'm riding on my equipped mountain bike.