First, always use the Mean Node, Yes it does make a difference. In my experience It's more accurate and some of my books concur.
Your Saturn return should happen in nov '13 and would most likely cause you to feel icky and i'd say it will involve your mother and definitely your home life.
Saturn being in your 1st should rebuild your life in a better way, a stripping of all things that are not necessary in your life, and with the Saturn return will Transform you from what you thought you were to who your soul has set out to be.
At the end of June '13 the NN will Transit your moon-Saturn conjunction. NN means the public and so does the moon, and saturn making the public or group of people see you as being very responsible.
I'd have to Agree that you should wait till after your saturn return before you change careers.
With the moon representing the women in your life, the saturn return could be about your wife or life partner, Jupiter in the 8th could mean a baby on the way.
Your Progressed cycle has just started Progressed Moon conjunct Progressed Sun 14months ago in the 1st house in Scorpio. I see that anything you want will come to fruitation. The 1st half meaning its all about you and scorpio has the laser like focus! The Progressed New moon happens every 27 years and bring Psychological Growth, the Start of a new era in your life.
Sp Moon is now entering the 2nd house and money and confidence will be flowing your way for the next 2 and half years.
Ok, for Careers i see you as a lawyer. Libra is all about balance in the system and seeing both sides of a story and mercury being in virgo its own ruler makes your mind strong being able to understand Language( Law terminology is a language just like Astrology terminology is a language). Virgo Mercury is good at speech and organizing thoughts, methodical comes to mind. O and dont forget Moon in scorpio being able to dig deep to get to the root, research! and thats what lawyers do, they battle with words and the language of the law.
Your Sun-moon Blend is all about the balance between your Wants and Needs. This is what Noel tyl says about your Sun-Moon blend from "Synthesis & Counseling in Astrology" (one of the biggest books i have at 870 pages, LOL.) "With the Solar energy to please others and gain appreciation channeled into the need to establish personal importance, control personal assets, and guard privacy, we have a people person whom the people can not easily get to know. There is a merging but a separation, which can be fascinating and sometimes powerful. More often, the paradox protects weaknesses. This blend is happiest managing other people's assets and other people's problems, attracting their trust and appreciation. (Jimmy Carter, Dwight Eisenhower, Julie Andrews, Truman Capote)"
Reading up on these people may help with your quest of what to do with your life.