Thank you all for your input -- I'm going to give them a try with my current amps, will be great if that works out. More money for a passive preamp maybe. Just read up on them a bit, sounds like my kind of approach.
If not though - the Crown and Red Dragon will be getting my attention. It's a large room -- about 1,000 sq. ft., not all dedicated to listening of course ha -- but unfortunately I can't crank it crazy loud very often.
One question -- just discovered that though they look identical, one of my amps is 70 wpc and one is 105 wpc. In this case, would it be safe to horizontally bi-amp, running the more powerful amp to the bass/mids? Or if you think bi-amping is a waste of time please say so. I'll probably at least try it though, provided it is safe to, since I have the necessary gear.