I currently own a pair of these speakers. They are, flat-out, the best speakers I have ever heard in my entire life. Granted, I've never heard anything really crazy high-end, but I can say for a fact that my Harman/Kardon 430 into my Forte II's produces the best sound I've ever heard in my life. The Forte II's have it all: great detail,
gigantic bass, and a very flat frequency response curve. My B3's can get loud and sound great, but they can't compared to how BIG the Fortes sound. The instruments sound like they're in your room. It's unreal.
The only disadvantage is that low-quality music will sound bad on them. They're so revealing that a 128kbps MP3 will really sound like its bitrate compared to 320 kbps. The source also makes a huge difference. We plugged in my dad's Creative Zen Vision:M into this setup and listened to a CD and my dad remarked that it sounded "pretty good", and I plugged my MP3 player in (iAudio X5L) and cued up the same track and the sound hit us and he said "oh my gosh... it sounds like a completely different set of speakers". So don't skimp on a good DAC for your laptop or good CD player.
I got mine locally, and would not have it any other way. Mine are in great condition and I can't stand the thought of UPS or anyone handling them. Do yourself a favor and grab them ASAP. I got $400 for mine, but honestly, their original MSRP is $1200 is a lot closer to how good they sound. Typical prices I see these go for would be in the $300-600 range, 600 being for a mint pair that has been upgraded with new crossovers.
Don't forget to cover up those PR's in the back, too. Replacements are up to $125 now from Klipsch.
I used a couple of the 15" heavy duty grilles from Parts Express (in the pro section) and some home depot parts to cover mine up. They're absolutely rock-solid and don't affect the sound.
BUY THEM
Don't believe me? Head over to the Klipsch forums, search, and read about how awesome these speakers are. By the way, the Cornwalls and Fortes are often compared on the Klipsch forums. It's really down to a matter of personal preference in the end. I haven't heard the cornwalls myself.