Fishing round Strathtay

Greetings..
I'm hoping there's someone who knows the waters around Strathtay in Scotland
can give some advice?
We're off there, the last week of OCtober, to a little place called
Edradynate, I think. ;-)
It seems to be virtually surrounded by rivers, but are they fishable? And
what species would I expect to find? I'm only used to, and geared up for,
general course lake fishing and would like to know if this is going to be
suitable for leisure fishing. We'd also like the opportunity to have a go at
flyfishing for salmon.. is there such a place where you can just turn up and
hire the gear?
Is there an off season for salmon?
And what would we need in the way of licenses?

Sorry for all the questions ;-)
Cheers!