Upvoted, but I disagree with the last sentence. Measuring everything doesn't fit too well with point #2, unless you have an obsessive personality, so adjust accordingly.
Agree and add that it's also dangerous (well, distinctly suboptimal but not life threatening) if you are keeping yourself to a strict measured diet. Your food consuption will be increasing rather dramatically with the new exercise load, particularly given the new need to grow muscle mass. It's hard to predict the changes and it is unlikely that your strict routine is going to be better calibrated than just eating when you are hungry or erring on the side of eating more (protien) than seems natural.
I'm looking for resources on effective weight training for the purpose of physique building. It's an area with a particularly poor signal to noise ratio so I would value pointers from other rationalists. The kinds of questions I would like to answer are:
Edit: I'm vegetarian, and I now realise this is rather important to answers to point three. So far the only supplement I've been taking is soy protein.