rithmikansur - Okay, cool, thank you! I was really hoping 45 would be something like what I will end up with. I kept searching around trying to find info on this and couldn't. Your reply was very helpful - I'll stick with 45-ish and cross my fingers that it's close.
JACANT - I know the FOV doesn't actually change the model itself, but if you look at my image, it does change dramatically the way the model seems to look - without knowing what setting will get me closest to what I will actually be viewing in a print, I'm kind of flying blind. The aesthetics of how this head will come out in print is really important to my whole project.
stop4stuff - Yeah, that's exactly what I mean - such a big difference between the settings, and if I got a print that looked like the version on the left, I would be -really- upset (and also would have spent a substantial amount of money on something unusable to me). Strangely enough, the FOV setting only seems to affect my perception of the head/face - I can change it to 1 or 45 and look at the body I have modelled and it never seems distorted to me like the face does. Human perception is weird.