After ruling out spokes, cranks, bearings, and saddle as the cause of all the creaks and squeaks, it turned out that ALL the noise was coming from…my HUB(s)! I was having terrible sounds coming from my kh 29er, which is the latest model, with the new kh moment hub. My 36er was also creaking, but only when I would mount or apply extra torque to the cranks, and it was LOUD!
Anyway, these new moment hubs are “press fitted” with a splined system, rather than a traditional weld at the flanges. The problem, according to Josh at udc, was that the first batches of the hubs were apparently “dry-fitted”, without lubrication, (as I stated in the previous post) causing the creaking, which some unsuspecting riders might mistakenly attribute to the spokes or cranks! I was one of them!
So, being the awesome company that they are, udc rebuilt my 29er wheel with a new kh hub, and also sent me a replacement hub for my 36er. Both are now back in perfect working order and they are both as quiet as a mouse…without the squeak! 
Thanks again UDC! 