I'm at my wits end here so I figured I'd try going online to find a solution.
Have a 2003 Camry XLE V6 where the engine suddenly stopped turning.
So far I've tried the following:
Confirmed there is gas in the car
Checked Battery is good
Replaced Starter
Replaced Ignition Lock Cylinder
Replaced Ignition Switch behind the Lock Cylinder
Checked all fuses in both fuse boxes(all are good)

I'm thinking of just hiring a mechanic at this point but am also about to sell the car so would like to avoid putting any unnecessary funds into it but the only results I could find online for the engine not turning are the things I've already tried above.
To clarify the key in the lock cylinder turns and I can get it into the on position - all lights and everything else in the car works but when I turn from on to start there isn't even a click. Is there some area I'm missing that I could check myself that I've ignored up until this point?

Thanks in advance for any help

 

Sounds like you have covered a lot of the bases.
Is there a specific thing that occurred and then this problem happened? Anything changed/replaced?
Sounds like it is time to break out the test light/meter and start tracing things. I would start at the starter because it sounds like turning the key to 'start' the car does not turn over; nothing happens.
You could try jumping the starter as well.