Thanks all! All your replies, comments, tips have been duly noted.
The room is highly reflective and I am beginning to think (as JonFo said) about "monopole" designs.
However, I'm going to try my hand at the Summits in different positions in my room - see if I can get them to sound as they did before. Perhaps getting them on the long wall and not against glass might do the trick? Then get some room treatments to improve it further?
I am wrestling the idea of putting them up on audiogon for local sale/interest and just gauge the interest I get for them... then I can better move forward with system changes.
If interest is good, then perhaps think harder about monopole speakers (new Cremona Auditors M with sub, 802D, Cremona M?)....
If interest is not good and I get lowballed, then I'm going to live with the Summits and optimize them as best as I could.
I dont know.. it seems rash but I miss my sound system. There are days when I just wish it were like before the move - where all I could think about were which CDs to buy and listen to when I got home where I pulled back my computer chair to the listening spot.
I went 2 years without changing the speakers. I really like ML, you could pull back my history with it from my first threads and see exactly how I started with this whole hobby.
I guess I'm looking at it this way:
The new room is definitely a challenge and is it fate that I got stuck with this room? I know this is teaching me about room acoustics like I haven't experienced before and this is going to further my knowledge about this aspect of our hobby. Now, am I also supposed to get a different type of speaker and learn from that also?
This hobby for me is not a static one, I have heard a good ML system - perhaps it's time to also hear a good dynamic one in my room?
I don't know... I'm also interested in the execution and design of other speakers - how else am I to grow in this hobby and how else am I to experience new things? Perhaps the room is the catalyst for change....
Or, then again, perhaps barring the philosophical thinking - maybe the new room is just that... a new room. And I'm supposed to live with it.