[d_runs_far]

I'm in the middle of Canada, these hand twist in screw piles are awesome. Used them for phase one of a 900 sq. foot deck this past year. Pylex Adjustable 50 Inch Foundation Screw - my seven year old kid helped me twist them in with a 2x4.

[foobarian]

These are pretty much exactly what I was looking for and I can give up on the automatic leveling in the name of pragmatism :-)

[d_runs_far]

Once they are below the frost line, and levelled, there should not be any need to re-level them. For a small structure, lay in 4x4 beams, then build a simple frame over top of that and you'll be golden.