Looking for ideas on where to start looking...

95 sc400, I have it listed, I'm driving another car, so it's been sitting unused. Ran like a top a month ago. Started right up, ran great, no issues at all.
Tried to start it today. Battery was dead from sitting so long - no big deal, charged it up, plenty of power. Tried to start, engine turned over just fine, but it would NOT start. One guy looked at it, said it wasn't getting a spark and said the cam shaft sensor was probably bad. His opinion, not verified through anything other than seeing it wasn't getting a spark.

Thoughts? Try to replace the sensor and see if that works? Any other things I should look at first?