I drove about 47 miles no problems. Then on the way back my car stalled at a stop light and it only stalls when i stop and takes a while to start (for about 45mins). At frist i check thegasbut all was well. Then my next guess was that the radiator fans were not kicking on later tofind that they also were fine. I'm going to replace the spark plugs. Does any one have any ideas.

 

CPS perhaps, relays opening circuit?
If/when this happens again, check for spark and fuel. Listen for the fuel pump and pull a plug to check spark.