2001 Toyota Solara cracked radiator in 2001 solara

Hello -
Recently a friend of mine and I did some maintenance on my 2001 Toyota Camry Solara. We changed the timing belt, waterpump, transmission filter, and belts. We also flushed the radiator and transmission fluid. When I was driving it home it overheated. Luckily I saw the temp gauge going up and was able to pull over and turn off the car before it caused any significant problems. My friend said it was an air lock in the waterpump. We topped off the antifreeze and worked the fluid through the hoses and everything was fine - for a week. My wife was driving the car and it did (I presume) the same thing. However, she did not notice the overheating until she heard a "flapping" noise and white smoke coming out of the hood. When I arrived, we popped the hood and noticed right away a 4inch crack in the top of the radiator. We got it towed and is at the shop right now. My question then: what should I expect to replace? The radiator for sure (I'm assuming), but will there be calateral damage as well - waterpump, hoses, timing belt (it was smoking out of that area too), engine (ahem), etc? Thanks!