Are There Any Good, High Power Solid State Amps?

I run the CJ 350,a SS design.--It does sound better NOT plugged into my Audience conditioner.

duh...

I would suggest McCormack's DNA-500. IMO its got it all at that price point, with no compromises. If you haven't heard one, reading the reviews will give you a good idea of how good it really is.

Pretty much all the amps mentioned above have their supporters, and rightly so. One thing that stands out for me is that Steve M. monitors this forum and often answers questions about his products here. Customer service doesn't get much better than that, and I think sometimes that gets overlooked in the rush for the "latest, greatest, etc.." Something for you to consider.....
Good luck

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).