Starting Porblem
 

I;m having a starting problem with my Sunfire. Its a 2000 SE coupe with about 100K on it. I have checked and replaced the coild packs along with the crankshaft censor the airflow censor. The problem seems to be that i am getting no spark to the plugs but i am getting power to the coil packs. The Haynes guide says it is possibly the PCM which i am hoping it isnt but if it is then does anyone know about how much they are and where i could find one? Thanks in advance.