Help, 1.8 EX not starting - no spark

Hi all, hoping someone can help. I've just undertaken a camshaft swap and done the timing belt at the same time and now the car will not start. It seems that there is no spark.
The timing was correct before I removed the timing belt and have checked the timing again however now it seems I have no spark. I've checked the spark on cylinders 2 and 3 and getting nothing. I've checked the fuses nothing gone. I'm now thinking to check the coil. Any help much appreciated

i take it you have checked the dizzy is lined up to the no 1 position when at TDC of piston no.1? have you checked to see if there is a power source getting to the dizzy?

And dont under estimate the need for a good earth!!!

As you have fitted a different cam shaft are you looking at the right timing marks on the cam shaft drive cog? They use the same cog on the intermediate shaft so there is a couple of marks on the cog.