recommendations for amplifiers that don't emit tons of heat

tripg,

With the info you gave us of your present status and also you may be in the position to upgrade speakers later.

You probably could find a class d amp used that would not exceed your budget or another possibility is the new Schitt audio Vidar that sales for 700.00 and I have heard a little bit of feedback on it that it sounds pretty darn good,I haven't had a chance to listen to it.

Kenny.

tripg,

There is this class d stereo amp for sale on audiogon that you may want to look at it would have 200 watts a channel into 8 ohms and class d amps have great bass with tremendous slam.

Just a thought,

Kenny.

Your speakers are 92db and nominal 8 ohms and with your small room you don't need that much power. you could getaway with 20-70wpc in a quality class A/B that will not over heat your room. Class D is an option but I would listen to one first see if its your cup of tea.  There is quite a few quality amps in your price range and at the lower watts you can get more for your money as your not buying power.

Those Paradigms like high current/voltage amps like Anthem. Paradigm is the parent company of Anthem. I've heard the two paired and they sound great. 
I wouldn't be afraid to push 200 watts through your speakers. Your going to maintain driver control better than if your easing in to 70-80 watts. You want better braking.

No mention of price point above.
I have the latest Spread Spectrum Son of Ampzilla MK-2,and I could not be happier It runs in pure class A to 10wpc then class AB .up to 220wpc into 8ohms,
340wpc into 4ohms and throws off very minimal heat. Class leading performance 
And compact in size. $4200 retail.