Best Scan Tool For Toyota

[toyotafan]

I've been seeing this question asked a lot. What are the best scan tools for Toyota?

Here's one I dug out of my private conversations to me.

... want a scan tool to tell me the details of all the inner workings and electronics. So many to choose from, can you point in the right direction?
Under a 100 for something that is not a piece of junk?

 

[MuddyTacoma]

This brings up a good point. For years Toyota didn't allow 3rd party devices to get access to pcm modules due to security issues. Has this changed?