1997 intrepid dies

i have a 3.3 intrepid that just shuts down while driving....lights are still on the dash..but just dies...only seems to happen after the car has been run for about 30 miles or so....turn key and nothing happens...battery is new and wires and all relays have been replaced...seems to me like the ignition switch is starting to fail...help?

I believe the 97's are known for ignition switch problems, do a search and you should find threads on the issue.