I use X2 Producer on a Windows 7 64bit system in my studio. I am currently working on a set of songs with another individual who is using Logic on a Mac. He will be doing the final mixes and some tracking in his studio but I will be doing the majority in mine and we need to be able to share these track with each other. Not to worried about getting the Logic files into Sonar but REALLY need to be able to export files to from my system to his as it's just not feasible to get to his studio to record.

There is no MIDI only audio tracks.
 
What are my options? Can anybody point me to a manual or tutorial on sharing files this way? I tried searching the forums and was unable to find an answer but did see a couple others asking similar questions.
 
I'm currently considering purchasing the X3 upgrade but if I can't share files with other DAWS which is going to be very necessary going forward, I will spend that money on something that IS more compatible with collaboration.
 
Thanks in advance. Any help would be much appreciated!

First just so you know, you in the wrong forum, this is the old forum, 
 
But these issues are the same to all versions. 
 
Make sure to use per project audio folders. This will give you an audio folder which is all you need to share.
I'm assuming your going to hand him a USB storage drive. I once tried the OMF file with a friend who used Garage band and it didn't work. You can work over the internet, but that requires an extra step of converting the audio to MP3. Easier to meet up and hand over the drive. 
 
Things to do.
Agree on the audio format 44.1-48 
Before you hit record you must name each track clearly. Recording and renaming tracks does not work the same. 
The tracks need to be exported with time stamp, broadcast wave, or all start at zero
Any tracks I had that had edits and little chunks I bounced to a new track. So all my tracks started at zero and played to end. 
If all tracks start at zero and play through the song then all they need is your audio folder.
 
If the songs are 100% audio this is not a hard thing to share. 
 
If all you are doing is adding certain instruments then even a stereo bed track of the drums and rhythm instruments can work. 

Such collaborations are commonplace and not particularly difficult. I've done collabs where some of the participants didn't use a software DAW at all. 
 
1. Determine who among you will be doing the final mix. This person will manage the "official" final versions of each file. It doesn't matter which DAW he's using - choose based on who's the best mixer. 
 
2. Agree on the sample rate up front. 
 
3. It's not practical to assume anybody has the same plugins, but if they're baked in to your wave files it doesn't matter.
 
4. Use MP3s for data exchange until you're happy with a track. All of you should be able to import MP3s into their respective DAWs.
 
5. Decide where everybody's going to drop files. That can be a cloud-based file server or an FTP server you set up yourself. You can email MP3s but then somebody has to keep all the versions straight, and you have to CC everybody. Better to have them sitting in a central repository where everyone can post or retrieve them whenever they want.
 
6. When you're ready to submit a final version of a track, export them from your project as 24-bit files, which are universal. Be very explicit in naming your files.
 
7. Broadcast wave files are one option, but it'll be easier if you just export standard wave files. Timing can be an issue, so it's usually easiest if you export all files from time zero. That way, there's no question as to where to drop them into the master project. Very short files, like a one-off special effect, can be sent as a short file as long as the clip is snapped to a measure. If you do that, name the clip according to its measure number.