How much is too much...

you should first determine the efficiency of your speaker. this maybe obtained form the manufacturer. then assess the size of your of your room. Is it alive or dead? walk through your room and clap your hands. is the sound loud and crisp or is it muffled?
What type of music do you like? Rock and classical require more power than jazz or chamber music.
Typically tube amps have a greater percieved loudness than solid state. If you are serious bass fan I strongly reccomend biamping.
Because amplifier power is such a huge selling point most manufacturers manipulate the rating to achieve the maximum watts per channel. this means you will have to make your own evaluation. You can rely on certain companies like krell or bryston just to name two.
A lot of people think spec's don't matter. I think you eliminatwe those amps that are not technically correct.then listen to the speaker amp combo in your room.

The Triangle Antals are easy to drive well, and only draw a little extra current at the low end of the scale.
So a well designed amp spec'd at 50-100W with a good PS should do famously.

Symphonic Line is one amp that sounds excellent with these spkrs, so the Odyssey mentioned above may be worthy of seious consideration.

wow thanks guys you've helped a great deal, have a happy thanksgiving

Caveat, these are just "Old Wives Tails" of audio, they are not concrete rules, "Just Rule(s) of Thumb": (1) double the power of the loudspeakers manufacturerer's minimum suggested power recommendation, (2) for high impedance speakers use tubes, for low impedance speakers use solid state.