I too recently bought the Onkyo 609 and hooked to wharfedale 9.6 floor stander.
You can go for wharfedale 9.2. But before that I would like to know your preferences. If you prefer a bright speaker(voice clarity) then go for wharfedale 10 series, else if you prefer deep bass, then go for wharfedale 9.2. you have to do audition, may be you can try vector systems near brigade towers-bangalore.