It is a good job that Im determined to get the hang of this manual malarky or I would be running for hills right now with my camera firmly stuck on auto.
The whole 'guessing at focus' intrigues me, and shows me how much I have to learn.
I usually shoot in AV mode, and (waiting for some of you to slap your heads in frustration) I don't really notice DoF, I tend to select an aperture based on how blurry I want the background (allowing for light) and shoot. I don't think I have ever used the preview button, and I have never tried live view either
Oh will, this manual lens will certainly cause me some pain - should be fun!