True double actions (as apposed to "safe action" striker actions) are definitely a bear to master. But - like others have said - once you get there you can shoot pretty much anything.
A gun with a slightly lighter trigger would probably be a good investment, but in the mean time pick up some snap caps - one of the few gun accessories that's still easy to find - and do lots and lots of dry fire. Depending on what the top of your gun looks like you can try balancing a penny on top, or come up with other games to break up the monotony of dry fire practice. The upside to a DA is you won't have to reset it between shots.
si vis pacem para bellum