Are There Any Good, High Power Solid State Amps?


I feel like I'm running low on power with my current 100 watt tube amp, so I'm looking for suggestions. I'd like to try solid state, but I want an amp with an airy, rich tonality. I've been thinking either Pass (love the XA series, but I'm afraid it won't be enough power) Pass X, Krell, Clayton, etc. Can you make any suggestions (new or used somewhere in the $5K - $10k range)?
Thanks in advance.
louisl
Well, since we're all tossing out suggestions into the amplifier gene pool, I will suggest the Moscode 401HR. Outstanding amplifier that can change it's sound with some very simple tube changes.

However, I have no clue if it would be appropriate for the OP, since he has not mentioned what speakers he is using.
TVAD,
Sorry it took a little long to respond.
MY room is 15 x 19 with coffered 8 ft. ceilings on the front wall (speaker side) and on the back wall (behind the listening chair). The sensitivity of my speakers is 89 db, and I listen at levels that average around 90-93db. In addition my room is lovingly treaated with ASC products and Acousticmac products (it's a great sounding room...even if I say so myself).
Sidssp,

Yes, I still have the VR4's (still great speakers...after all this time together!). I've done a lot of work though on the room, by adding room treatment. Don't know why I waited so long to do it!
Sidssp,

Sorry, didn't answer your question. I'm thinking in the neighborhood of 300-500 watts (big Levinson, Cary 500MD, big Clayton maybe?).
Lapierre,

That conditioner is a Running Springs Audio, Jaco. If anything, after I inserted into the system, everything was better......period. No and's, if's, or but's!