The best tool I give my students is a SIRT training pistol. I have an early model in the Glock configuration (only model available at the time) and it allows one to quickly understand the concept of proper trigger control and makes it easy and safe to practice drawing, reloading (weighted magazine included) and firing. No need for the fancy models. Just projecting a laser beam at trigger pull will get the job done. Pricey for some but I feel they are really worth the money in the long run. Now available in Glock, M&P, and they have a pocket pistol model that looks very interesting.
"Never pet a burning dog"