Speaker recommendations for large family room

Hi all,

I'm looking for a little help with speakers for my family room. The room is approximately 20x20 ft with 10 ft ceilings. It's an odd shaped room and I've been trying to figure out a pair of speakers that will sound good in the room.

The speakers will be along a wall that has an opening to another room on the left, a fireplace left of center and the tv to the right of the fireplace. Between the fireplace and the right wall is about 9 feet. I currently have a pair of Linn Katans along that wall, one to the left of the tv on the fireplace hearth and the other about three feet from the right wall. The speakers are backed up pretty close to the wall. Seating is about 11 ft back from the speakers.

The Linns are great speakers but sound thin on bass and kind of get lost in the room. I'm looking for some monitors that can be backed up to the wall and have more bass presence.

The rest of the system is Linn but I'm thinking about moving things around and using an Oppo BDP-93, Benchmark Dac and an integrated to be determined. Budget for the speakers is $500-1000.

I'm sure the room dimensions and placement are a big part of the issue, but I'm pretty limited to the current layout.

Thanks in advance for any suggestions.

bmdduck