With Maimonides we already know his four point system (1) the Written Law (the Law of Moses) (2) the Oral Law (the two Talmuds) (even just to read them in English with the Soncino edition is also good. I have hear from Rav Zilverman in the Old City about one huge Torah scholar that went through the whole Talmud a bunch of times in that way.) (3) Physics [i.e. Field Theory]. (4) Metaphysics (Aristotle).
Based on what I understood from my parents and brothers I would have to add a few things to this list. (5) Gaining a real skill that people will pay cold hard cash for. Not a fake skill and may make money but in reality does nothing for anyone. (6) Survival skills. (7) Some aspect of the Quadrivium and Trivium (What the Gra and books of Musar call the seven wisdoms). (8) Musar. This last one was considered by Reb Israel Salanter to be the most important because it gets one to the two most essential aspects of Torah--good character and fear of God. Musar means the four classical books אורחות צדיקים חובות לבבות מסילת ישרים שערי תשובה plus the major works by the disciples of Reb Israel Salanter מדרגת האדם כוכבי אור אור צפון.
This approach more or less defines what I think people ought to learn in order come to what a person ought to be. It is a balanced approach and thus hard to fit into a daily schedule.
There are people that feel they can not be in between Torah and other studies and for a time I was like that. This reminds me of Reb Israel Salanter that דעת תורה is to be an איש מדיני but because of the difficulty in doing that one must concentrate on Torah alone.
I can see the point in the Torah alone approach, but in general I was not very impressed with the people involved in that path. Instead of coming to attachment with God they seemed to be sanctimonious and desperate for money of secular Jews. But in the religious world even balancing values I saw did not work very well. Instead of balance I usually saw pretty bad character trait combined with attitudes of imagined superiority.
A lot of the religious world sees Reform and Conservative and Religious Zionism as bad things, but these last three I found a lot closer to actually keeping the Torah which include obligations between man and his fellow man. I would have to say the Religious Zionism and Conservative are closet to Torah. Reform seems a bit too far into "social justice." My brother thinks Temple Israel in Hollywood [where our family went to pray] is Conservative. It is true it had an aspect that was conservative. But at the time we were gong there, I thought it is Reform. Anyway it is a great place. Mount Sinai in Westwood we also went from time to time.
[I should mention that I found doing the Talmud in Aramaic was better for me, I did not understand the Soncino translation very well without doing the Gemara also in its regular Aramaic.]
Still the only aspect of the religious world that seemed kosher at all were the Litvak yeshivas in NY. The rest of the religious world seems to be a disaster zone full with cults, שדיין of the Dark Side that were just lurking outside the walls of the yeshiva just hoping to catch some innocent unsuspecting yeshiva bachur [student].