Here is a product for those of you that can never have enough power for very long periods of keying: The Distronix DX2400L1 amplifier. It is rated at 2400 watts PEP and 1500 watts
continuous duty on
SSB, CW, RTTY. This guy ran this amp for the entire convention at about 1300 watts. I don't think he ever turned it off. It is also really quiet; you probably wouldn't even know it was on without the lights. It is also massive!
Front face with watt meter showing about 1300 watts output:
Bird Meter showing the amp output: