Sidi Escapes $ (don't remember). Had em for 3 years now. Nice warm weather shoe (Note, not really a boot) easy to walk in and absolutely not water proof, unless you put put a Glad Kitchen catcher bag over each foot. Don't ask.
Sidi On Roads $ (shit, can't remember either). Had these about 4 years now. Nice cool, cold, weather boot. Not as easy to walk in and take a tad wearing to break in perfectly. Absolutely 100% stand-in-a-glacier-fed-stream-up-to-your-calfs waterproof.
Sidi Crossfires $250 (used, bought em off another ADV inmate) Everything everyone else says -- armor for your feet. Don't go out to the woods without them. Not a hope in hell of ever being waterproof but drain nicely when stuck onto the stump end of a tree branch.
All of them in size 45 -- shoe size is typically 10 - 10.5 -- and everything in the Sidi lineup is reliably consistant with sizeing and fit D width feet perfectly. Not really suitable for EEE or wide-ish feet.