[jdmccright]

White smoke came out of where...Engine bay? Exhaust pipe? The former could be as you say, a cracked radiator or blown out hose. The latter usually points to a blown engine head gasket or worse a cracked block. Any chance the engine was running hot before it first happened?

As Brian stated, looks like you're in the market for a new car if it's the latter, or at least a new engine. Toyotas of this era are great for reliability, but they're almost TOO reliable to the point of complacency...though a counterpoint would be you can't predict when a head gasket will go. But the rest of the cooling system does need periodic maintenance to keep it flowing properly.

I ask about it running hot beforehand because the one part that I know can fail is the cooling fan temperature switch. If that craps out then the fans don't know when to turn on, leading to overheating.

Hope this helps!