Ok, more speakers have been tested.
I had a chance to listen to not only the Rocket 850's, but the whole system as well (bigfoot center, surrounds etc.) I'll start with just the rockets.
The rockets have a really nice sound. good, round, clear and even. The stereo imaging was good, but not perfect. The bass is easily sufficient, but not overpowering, and doesn't make everything seem too dark. High's are good, not perfectly accurate, but they're slightly softened in a way that I don't mind. I was listening to a track of solo piano where the high notes get very "pingy". It gave a good, clear sound without hurting my ears. I quite enjoyed listening to these speakers.
Upon returning to Montreal, I retried the 684's and realized they were not the speaker for me. The voice was unfocused, and the sound, while nice, just wasn't as good as the rockets.
I also tried some PSB Imagine Tseries. These had very nice imaging, but the highs really got on my nerves. I decided to leave and come back to them later. When I came back, I felt the same. The imaging was great, but they were lacking in the low range, and I could tell that my ears would get fatigued pretty quickly if I was listening to the "wrong" music.
Following this, I went to a place in Montreal that sells Totem speakers. I tried out the arro and sttaf speakers. Sttaf were clearly superior, and more in line with the price and quality ranges of the other speakers I was liking (and able to possibly afford).
The Totem Sttaf speakers had fantastic imaging, and a really nice sound, though again, they were missing a little of the impact of the bass that the Rockets had during non-classical music. The sound of the voice was natural and focused. highs weren't fatigeing, and I was really enjoying the experience. (just for kicks, I tried the "forest" model, and was really impressed. The store just received the new "wind" models on the weekend, and those weren't even unpacked. I'll go listen in a few weeks for fun.)
After more research, I've decided that the Klipsch speakers probably aren't for me. They have a fantastic sound, but I'm fairly certain that the horn design will tire my ears very quickly.
I still want to audition a pair of Axiom M80's, but it doesn't seem likely at this point. Nobody near montreal has responded to my calls for an audition.
So, if all stands as it does now, I'm likely to go with the Rocket850's, and maybe get the bigfoot as well (is that strange to get the two floorstandings and a center speaker? I can't afford the surrounds or a sub yet. would I be better to get a sub before the center speaker?).
Again, thoughts and suggestions are very welcomed.
Best