ajay,
speakers show the most "personality" and its very important to get them right..of course taking into account the room and the budget. i have found tone and timbre to vary so much from speaker to speaker . while amplification /room does change many things there is something about the presentation (the soul ? ) that remains constant.
everything else is a function of the amp and the room (and cables)
unfortunately i have never been able to buy a speaker after only an audition..only after a study/research etc to understand what the speaker (and he designer) is all about..as the only way to hear it right is to hear it in your own room with your own amplification.
Once you get the speaker right it is a question of finding the right amp to marry it with..and yes the synergy can be chemistry or a damp squib irrespective of the pedigree of the amp (any subtle connects to marriage are intentional

)
if you hear a Maggie, a single driver , horn etc i believe you will know exactly what you will like. especially since you have a very clear preference for the kind of music you listen to. and if you get what you like and want to do the best for it, you will need to find the best amp for it.
regarding Standmount vs floorstander..my personal opinion is it does not matter. Just go my the speaker that does you music well. there are floorstanders which dont do enough bass and standmounts, with the right amplification which do ! (while floorstanders are a bit less than a bookshelf as it is in the VFM factor. moment you start factoring in a good Stand..these difference become much smaller)
if you ask me the best possible speaker which might go with the bryston..i might also suggest the Harbeth monitor 40

although that is well over most budgets but one of the better speakers for orchestral works
this is Richard green (Of TAS's ) room
http://www.regonaudio.com/REG Listening Room.html . his articles on the home page are pretty interesting too. other than being a reviewer, he is a mathematician teaching at the UCLA and a Violin player.