I used to use Maya for camera tracking; now I use Syntheyes and love it. I'm so used to using Syntheyes that I don't feel like switching. But from what I've heard the Foundry's Camera Tracker does a great job, and you get a 15 day trial before having to fork out $170 for it. Or you can "rent" it for a few days for significantly less.
The nice think about Camera Tracker would be that you stay in AE the entire time, which is a big bonus. I haven't done a side-by-side comparison of the popular tracking programs (Syntheyes, PFTrack, Boujou, CameraTracker... what else?). That would be a very useful thing to have, though....
Ben Unguren
Motion Graphics & Editing
http://www.mostlydocumentary.com