I've been doing my research (surfing) into the possibility of using studio monitors in my HT setup. There aren't many choices if I need a horizontal center channel speaker, and I do.
The best option looks like Mackie who makes the HR626 and HR 624. These are both bi-amped active monitors with 6.7 inch woofers and 1.0 inch Aluminum/Impregnated Cloth tweeters. They street for about $650 ea and $450 ea respectively. I think I can swing that.

The only other option in the sub $1000 studio monitor route with a horizontal center is the Tannoy Reveal 66D and 6D. These take a digital signal and have onboard DACs. They go for a bit more at streets of $700 and $550.

The Mackies seem to have the better rep and I'll definately have to get down to guitar center one of these days and hav a listen. It will be interesting to pit them against the more "hi-fi" offerings from good companies like B&W and Paradigm.
I'll keep you posted.