Hi Ptm, I've came from a similar place. My room is a similar size to yours and I ran Totem Forest which I really enjoyed. With two youngsters not to mention their friends the Totem's were an accident waiting to happen given their light weight.
Some budget became available and I went for Kharma (see system pgs). I was staggered at the difference, greater transparency, more lifelike tonality and most importantly sounds/instruments take on greater weight making them sound more real and obvious in their placement within a wide, deep soundstage (assuming that info is on the disc).
As my system has evolved the speakers have revealed more and more, care taken with cables, support and most importantly placement have got me to a place where I'm very satisfied. I'm as happy playing music these days as I was searching for the next upgrade in the past.
Having had some experience with the components you run I'd expect the Kharma's would work and if at all possible they'd be worth an audition.
Truth of it is if you take the care to find a speaker in this range that synergises with the rest of your system you should come out the end very happy indeed.
Very best of luck with your search.
