NHT 3.3 is the only hi-end speaker that comes to mind as working well against the wall. It's floor standing, with a very wide frequency spectrum. It has relatively discreet looks (wife factor) and would be a big step up from your Forte (my old speaker). There is a scaled down version which may better suit your room size and is also less expensive - NHT 2.9. Whatever speaker you choose (and there isn't many that work well against a wall) make sure you put some kind of treatments (ie rug) on that brick wall.
Speakers to beat wife-factor ?
I'm looking to replace my Klipsch Forte's with something more refined, but wife-factor requires placement very near rear brick wall, in a 12x14 room (England). Child-factor requires floor-standers -- boxes on stands wouldn't survive. Would like a Maggie-flavored sound, but is there anything that can deliver with its back to the wall and its feet on the ground? I want to keep the solid bass I have now with the Forte's, but want to improve the rest of the sound. Is my quest impossible?