Thanks for all the great info guys.
It seems the thoughts on September are mixed. We're not locked in to September by any means, I'm just conscious that the North American holidays are July & August and would rather miss this. I'd prefer to take the odd camp ground being closed and no crowds than everything open and really busy, but I'll do some more research on it. In Australia our first month of Autumn (Fall) is the best weather of the whole year, but we also don't have as bigger mountains and are closer to the equator than the North of US & Canada.
Thanks for the feedback on travelling with a baby. It seems do-able, I'll do some more research on RVs that can handle child seats and that sort of thing.
Yes the Australian Dollar is going the same way as the Canadian Dollar against the USD, which makes me think it will be cheaper renting up there. Again, I'll do some research on this.
Thanks for the suggested itineraries Crowe. I thought the loop might be a bit much. The only issues with those itineraries I can see is different start and end points (or a big drive back to base). I doubt there would be RV rentals that allow a pick up in Canada and a drop off in US, but I'll check it out anyway.
