#1: Make sure fans work
#2: Make sure coolant is of proper ratio; I run 45% coolant, and the car runs about 10 degrees C cooler than if you're running 55% or so.
#3: Replace your T-stat. If you're there, pop in a new one (and make sure small check valve is at the top)
#4: Pull top 1/2 of fan shroud (3 small 8mm bolts & 2 clips), then pull the clips that hold your radiator to your radiator upper support. Pry the radiator away from the A/C evaporator, and flush all the crap out that's invariably in thereKeep us posted-sounds like you're too hot methinks
