Family Reunion Location

I figured you folks would know the best location out there...

I'm looking for something in north eastern Idaho. My family, mostly the cousins, haven't been together in the last 15 years unless there was a death in the family...we'r looking to change that.

The group will be about 35, maybe 60. There are rug rats from 1~10, teenagers, semi-adult adults (30~45), and some of the golfing crowd. We will have everything from horses to bikes, to 4x4s to buggies. Golf gourse, cabins, camping, offroad trails and lake are required.

Any ideas?

Thanks Pred, haven't been on this board for a long time...
Have you been to any of these sites? My family can be a little noisy, not ignorant mind you, but noisy.
I like the Panhandle, but is there a golf course near by?
How about swimming for the kids, or is it too deep, cold, etc.
Thanks for the info Pred.