I think Eric is onto it. Start messing with recurves once you can crank out a straight limbed bow quickly, efficiently, cleanly, without fuss, and with a high percentage of success.
Also, even when you steam, I find the window of time to bend the tips is not more than a couple minutes, I like to do it IMMEDIATELY. I have everything ready when it comes out of the pot. Wood has to be thin enough to bend a little already, steaming just makes it so once you bend it and let it dry, it holds the shape. It wont ever turn the wood into someting particularly soft or weak.
What I did when I wanted to learn to steam/dry heat bend is to take a cheap pieces of straight grained board (not a bow) maybe 8-12" long, and thin it down to roughly the thickness of a limb, and start boiling/steaming/heating them and bending tehm on a form to get the hang of it. That'll give you a feel for what it takes and what to expect without snapping limbs off.