Well, everything is done. Did my first all grain brew last weekend, and it went perfectly. Can't wait till the next one.
One thing I did notice is that the water temperature under the elements can be as much as 10 degrees cooler than actual. It pays to stir the water around when you are about 10 degrees from your target, just to make sure everything is mixed together well.
Also, I put the thermocouple in a few different parts of the grain bed during the mash last weekend, and there was a few degree temp difference there as well. I was going to mount the t'couple in the bottom of the kettle and install a sight glass, but now I think I'll leave it loose so I can put it right in the center of the mash for a more accurate temp control.