I've been more than happy with my Hella 500 driving lights. They throw a good amount of light, and are fairly inexpensive, which was my main attraction. It's nice knowing if I happen to break a light, it wasn't a $200 piece, but that's just me. A lot of people here run them as well as other light brands, so I'm sure they will put in their thoughts. As for rock lights, I plan on doing that this summer. They are functional...they help the driver and spotters when wheeling at night, and they can be very helpful if for working under the truck if you have a break at night. Get a cheap light (there was a thread in the hot deals section on a good deal for rock lights), because they will be prone to breaking being mounted underneath your truck. Hope this helps.