Re: Exporting to Protools
When I send audio files to another studio who doesn't use Sonar, I export each track as a 24-bit WAV file.
They import them (into MOTU Digital Performer) and orders them how they like. I'd be REALLY surprised if PT was any different - they could just set it up as a new project.
There's also the option of saving the project as an OMF file. This will include some of the settings, and is a common file type for most DAWs. Pro Tools will understand that type. I've never used it, but might give it a try one of these days.