I am sorry for my delay, I had a small internet problem. But now I will give this a try.
I'd like to say that my analysis will be very simple because I am not well acquainted with all aspects yet, so it's hard for me to look at a chart and immediately understand how the planets affect each other. Please, no rotten tomatoes! Most of my interpretations come from my own notes and some books... I apologize if some sound "stiff" as I am still coming to grips with the astrological language.
First, on Mercury being Combust, I have to disagree with Cor serpentis. I think it IS indeed Combust - according to my research Mercury has to be 14º or less away from the Sun in either side to be Combust (and in Hitler's chart is is). None of my sources say it has to be on the same sign. I also disagree that it'd be an immediate indication of "mental problems" as ihcoyc said - Mercury stays combust for more than half of the year. That would mean that a big part of the population would have "evil mental problems". I am sure these tendencies could be indicated by other elements in the chart.
Back to it. My first ideas:
While looking for general patterns, I noticed that this chart has a lot of planets in the Western part of the chart - "setting" planets. According to one of my books, this symbolizes that this person's life is very connected - and sometimes dependent - on other people's life. I'd would say that Hitler needed to be with the right kind of people to rise and, indeed, he was.
Sun in Taurus indicates someone who prefers to stabilize things. The native tends to deal with things in a rather practical way, seeking to conserve all as it is intend of trying new ways. Taurus has a tendency to retain things, emotions, memories and ideas, and clings to them. In the 7th House, this Sun shows that the native will "cast his light" upon the others, kind of mesmerize them (and perhaps blind them at the same time). He may also be a bit dependent on how others see him.
Libra rising, with a Taurus Sun, can make the native a lover of beauty because of the strength of Venus in the chart. However, is cools a bit Taurus earthy sensuality, rendering him a bit more detached and mental. This is complemented by his Moon in detriment. The Native seeks order and "perfection" in a sense, and is sometime slow to make decisions and take actions.
Moon in Capricorn, it's in a detrimental position, which renders the individual a bit cold and capable to detaching himself from his emotions when needed. Capricorn stabilizes the Moon, and gives it ambition. Because the Moon is also related to how you draw people to you (like the Moon itself attracts the tides) , I'd say this native is someone who will seek a lot of public attention and honor.
Both the Sun and the Rising sign have the same ruler, Venus, so I think this would give this planets a special strength. Also, I'd say that Libra rising would make Hitler appear more charming than he actually was inside, because Libra is a gentleman when dealing with others (even if the emotions inside disagree, bur Air signs don't care so much about emotions).
I think it's interesting look for Venus, because of its importance. It's in Taurus, conjunct with Mars in the 7th House. It's in its rulership and within its house, I'd day it's completely comfortable there. My first idea of a Venus so strong is related to his interest in art and beauty, because this is one thing that Hitler focused on before his political career. His high ideals of perfection could be also connected to this. In the 7th house, Venus makes the native popular with the public and pleasant when dealing with others.
It's funny that Mars, being in the same house, could represent strife with others. Mars is in detriment in Taurus, and not well-placed in the 7th house - it's not feeling very comfortable. So I think the aspect between Mars and Venus would not be all flowers, because of Mars' bad position. So this conjunction feels a bit inharmonious. According to my notes, in a man's chart this combination makes one proud and arrogant. It also makes the native fight the people he loves quite often, and lose his temper on them.
Mercury in Aries makes the native good at discussing and arguing, passionate when speaking and also a natural leader. His mind and words are kind of guided by the instinct, and because Mercury is in the 6th House this shows his communication skills will be important at his job. Because Mercury is Combust, it could indicate some difficulties in learning
Well... that's it for now. I focused on the personal planets first, now I'll take a look at Jupiter and Saturn and the outer planets. I am sorry if I was verbose, I wanted to show where my conclusions came from... as a part of my own study. Please, feel free to correct me if I said anything stupid.
Thank you very much for reading this.