Hi!
I did both of these exams a couple of weeks ago - pretty much a walk in the park if you've read through the AIM. I can't remember all of the subjects the instrument exam covered but here's a few:
- Alternate minimums
- Use of french language on the radio
- Instrument rating categories
- Approach ban (RVR 1200 thing)
- Fuel requirements
- Converting RVR to equivalent visibility in statute miles
- VFR-OTT procedures
- Airspace (which rules apply when class C twr is closed etc)
- Clean aircraft concept
- Definition of critical surfaces
- Instrument currency
- Procedures for operating in altimeter/standard pressure regions
- Communications in uncontrolled airspace when operating IFR (broadcast freqs etc)
Hope this helps out a bit since there's no official study guide for this exam. I would also recommend reading the AOPA/COPA guide to border crossing between US/Canada. It sums up all the major differences in a couple of pages - saves A LOT of reading. It can be downloaded as a pdf file by searching for it on google.
Oh, by the way - the instrument one has a 70% requirement to pass