Hi Mike, Don't over-think this one. For 98% of us hams the MFJ dummy loads will work fine. The MFJ-260C is rated at 300 watts and sells for $50. The MFJ-264 is rated for 1500 watts (an Ohio vendor sells it for $80) if you think an amplifier is in your future plans. 73, Mitch -- Sent from: http://elecraft.365791.n2.nabble.com/