Mike,
So the guys from the coast want to go inland to a lake? And as Karl eluded the inlanders want to go to the coast.
Oklahoma? I'd recommend Texoma.
Montana? I always wanted to go to Fort Peck Reservoir, although I don't now a thing about it except my grandfather helped build the dam. Now that's a monster lake.
Nebraska - McConaughey Reservoir, 24 miles of sandy shores (4WD needed) On our 'to do' list.
How about Coure de Lane Idaho? No nothing of the wind situation.
One thing about plains states is you'll get some good wind, maybe more than you want

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