I'd recommend some Decware MG 944's and maybe a sub to "rock your world".  They will shake my house when powered by my Torii. I have found out that I listen a whole lot louder than most, and this combo works well for me.

Klipsch Heritage (CW, LS, KH, Heresy), Cinema series, the older "extended Heritage" (Quartet, forte, Chorus) and the Legend series (KLF20, etc.).  

I thought I had posted on this earlier but evidently not.

I would go with a new pair of Zen Zeigler MG944's They are well within your budget. They also dig deeper into the bass than the other speakers.

They would work well with any DECWARE amp.

Ok, your starting point for this with the zen integrated and fortes is indeed a pretty high point in the audio universe.  99% of the folks out there will never even hear a system as good as what you have right now.

Sounds like you want something other than horns.  I can understand that.  I have one horn system and a bunch of others, each determined mainly by the room and application for the most part.  Each has it's charms.  The thing I like about horns is the way they can essentially remove the room from the presentation by virtue of their narrow directivity.  It's akin to headphones or nearfield listening, and the ambient cues from the source dictates the picture painted in your mind, transporting you to the recorded venue.  It's my preference for live recordings and recordings that have a lot of ambience.

The other systems I have are more conventional (shallow waveguide or flush mounted tweets, direct radiators).  Their wider dispersion creates ambience from the room, so these systems excel for close miked and zero-ambience studio recordings.  They can bring the musicians into my room, which is pretty cool.  If the listening is done near-field and/or the room is effectively treated, these systems all tend to sound more similar to the horns.

I suggest you keep the forte ll, whatever you do.  They are a genuinely awesome speaker, among the best Klipsch ever produced.  Consider a Torii for them some time in the future perhaps.

And get something different like the MG944, which is probably Decware's most rock-friendly speaker.  And don't forget how they'll interact with your room.  I think you may prefer that approach for some material, and your old fortes for other stuff, as I have.

One can never have too many speakers.

 

     

Tonian Labs make great high efficiency speakers. Here's a review of a pair that I just acquired to use with my Torii. I also own Fortes:

http://forum.audiogon.com/cgi-bin/frr.pl?rspkr&1296672136&&&/Tonian-TL-D1-MK-II-...

Good question. The ones I got are 8.