I'm in a similar hunt for a new pre/pro, I personally don't like the Bryston, and have had Aragon in the past and found it a little rough in the mids and highs, so to me it was somewhat fatiguing. Ive heard good things of the Integra gear, but havent been able to listen to it anywhere yet. I am heading towards the Classe SSP 75, and in your case, since your also considering Classe amps, I would go with that and match your pre/pro and amps. What can I say, Im a believer in synergy!
Ken
Ken