2001 Avalon won't start

I have a 2001 Toyota Avalon that cranks
but won't start. It sounds like it isn't getting
fuel but it is. I even used starting fluid
incase it wasn't getting enough but no fire.
Checked spark plugs and they are getting
fire. Checked compression as well. I notice
when I put the key in to the ON position I
don't get the ding I should. I'm thinking its
security related? It's getting fire, fuel,
compression and air. I can't think what else
it could be. And it's getting some RPM
readings so I don't think it's the CPS.
HELP!