Have to say Im sold on shooting only in RAW now and having ACR helps to smplify the basic editing process before switching over to Photoshop for more processing.

The only thing is you need more memory cards of become more confident/exclusive in what you shoot and shoot less images on the day. That is a good thing.

I don't suppose it matters if you convert to JPEG or TIFF to do further work in Photoshop but I have a feeling someone is going to say no convert in TIFF because it does not compress the pixels whereas JPEG will .. Right ?