How hot is hot? Are you losing any coolant?. My V8 temp looks drastic in traffic, but soon cools down when on the open road.
Are you using a 50/50 e. glycol/water mix. E. glycol will help raise the boiling point of the water, won't stop it getting hot, but it can get hotter before it boils!
If you want a bit of emergency heat control, turn the heater on full blast, this will absorb a bit of heat from the system.
As LoverBoy said, check the efficiency of the fans. Roll up a humungous large joint, light it up, and hold it in front of the radiator when the engine is idleing, if the smoke is not drawn through at a great rate of knots, you may have partially blocked radiator fins. The "smoke" test is a good one, and of course, any smoky material can be used.
"I married Miss Right. I just didn't know her first name was Always."