I got the same key+electronic chip as you do(we call it Immobilizer here) and simple central lock remote and that's all (I'm talking Protege 2.0 top model when I bought it here). The theory here is just get as many security devices as you can to slow them down because they seems to able to break all that at last anyhow.
The mention tracking system is still new here. Not sure if anyone in the club's got it yet but I doubt it.
I'm using peeb_
[email protected] if you want to communicate via MSN-Messenger (just in case)