You can EASILY make a 1 point FreeTrack system. The 1 point system will give you the ability to look left + right, Up + Down in game.
If
I could do it, any one can. You can use a hat and easily have 1 LED on it.
Be a lot cheaper than the track clip pro. I think the parts cost less than $5.
You could also look into something like this:
http://www.armaholic.com/forums.php?m=posts&p=58477#58477
But I don't know if it works with the wiiremote. I doubt it does.