What are some good treatments for acne scars?

Retinoids. Any Retin-A type product will improve texture of the skin; but they will not help with deeper (ice-pick or rolling) scars. There are several methods available: series of chemical peels (glycolic, tca) as well as laser. There is an excellent laser call fraxel dual which works great on scars. Its a long process, however, and several treatments are required.