I think it's possible, but not likely that Sidious had a hand in Anakin's birth or placement on Tatooine. Can't see that happening. Nuh-uh, no way. At the time, Sidious already had an apprentice in Darth Maul. By the time Maul had outlived his usefulness (killed off, to be precise) Anakin would also be too old to be trained for Sith-hood. According to the EU, Sith (not counting Dooku) are trained since birth, just like Jedi, but are individually trained to be malicious weapons of wrath and destruction. If Anakin was so valuable to Sidious, then why did Maul nearly run him down as he and QGJ fled to the Nubian ship? If we play by your scenario, surely Sidious would have told him to ensure Anakin remains intact. I'm just going to accept things the way they are, even if they're unexplained. GL probably meant to leave a few things out to keep us guessing. Anakin's the Chosen One, his connections to the Jedi Council and Sidious are purely coincidental. I'll leave it at that, but that's just me.