I'm a Scorpio, born on the cusp of Sagittarius, and here's what http://www.astro.com (as pointed to by melstar) had to say about me...
For those of you who know me...
Is this at all accurate?
You are rather quiet and reserved, but others see clearly that you have deep emotions and feelings, even though you may not say very much. But you do find it difficult to make yourself understood to people.
You are quite stubborn, and if necessary you will fight very hard for your position against anyone who opposes you. Your anger is not easily aroused, but when it is, it can't be calmed down easily.
You like to experience life with your total being. Thus you may display a kind of courage that others find frightening, although you are not usually reckless.
In addition, you are quite sensitive to other people's feelings. You are somewhat easily hurt, but instead of pulling back, you often strike out with a cutting remark or biting sarcasm. Anyone who watches you at all carefully will see your anger.
Sun in Scorpio
You are very intense and have extremely strong feelings, which you find difficult to talk about because they are also very complicated. When you lose your temper, you get extremely angry; fortunately, that doesn't happen very often. And when you are angry, you don't easily forgive the person who caused your fury. For this reason you have ambivalent feelings about many people. On the other hand, if you do love someone, your feeling is very intense.
You are very sensitive and your feelings are easily hurt, but you won't run off and hide if someone hurts you. Instead, you strike back and fight hard.
You have a great love of the mysterious and hidden. You also want to know what is going on in people's minds, so you make an effort to learn as much as possible about human nature.
Sometimes other people have difficulty understanding you, and for this reason you may not make friends easily. But the friends you do have will be very good ones who will probably last for your whole life.
Sun in the Second House
You love security, which for you means being surrounded by comfortable and familiar objects. The only problem is that you may try to own more things than you really need, so that your life is cluttered with material possessions.
You may find it difficult to share, but if you want to have good friendships, you will have to learn how. You are even possessive of your friends, and don't like to share them with anyone else. If a friend pays too much attention to someone else while you are together, you are likely to feel jealous. But you have to learn to share that person with others.
Note: The Sun is technically near the end of house 1 and is therefore interpreted in house 2.
Moon in Leo
You consider yourself important and want to do things that will make other people proud of you. But most of all you must be proud of yourself.
In a group, you try to be the outstanding person one way or another. You take your feelings very seriously and are inclined to emphasize or exaggerate them when talking to others.
Above all, you feel the need to be yourself, and you do not easily act as other people want you to.
You are emotionally very warm, and if you like someone you let him or her know it. But you need love and affection too, and above all, reassurance. The better you feel about yourself, the less you feel the need to show off.
Moon in the Tenth House
Your mother will have a great influence upon your life, shaping your basic attitudes and your ideas of what values are significant and what is worth doing in life. She will also influence you to be very sensitive to your own and other people's feelings, and you may use this sensitivity in your career later in life. Because you understand how other people feel and how they react, you can be successful in any career that puts you before the public.
You may travel quite a bit in your profession.
You should be careful of your tendency to reflect other people's feelings, because it keeps you from being yourself.
Venus in Scorpio
Your feelings about people are very intense; you either like them very much or not at all.
Only deep relationships have any meaning for you. You find it somewhat difficult to tell someone that you like him or her, because you are afraid of being rejected. It is hard to put your feelings into words, because they seem so complicated. And it is true that not everyone will understand you and your feelings, but you will just have to accept that.
Venus in the First House
This is a very favorable position because it enables you to make a good impression on others and to be liked. You concentrate a great deal on your appearance, because you hate to look sloppy. You may develop some artistic talent, which will be furthered by your sense of form and design.
You work very hard to get along with others, and you usually try to win arguments with diplomacy and tact rather than force. You must learn to be self-assertive when necessary and to stand up for your rights, forcefully if need be. You can give the world much beauty, and you will present it most effectively if you learn to combine charm with strength.
Mars in Sagittarius
Your actions are motivated by your ideals. You are willing to work hard to improve the world according to your ideals and less concerned with getting your own way. If you are working with others you want to be at the forefront, where the action is.
Being outdoors gives you a sense of freedom and a good outlet for your abundant physical energy. This feeling of freedom is very important to you. You will rebel against any restriction.
You have a strong sense of justice and are not willing to see anyone given an unfair deal.
Mars in the Second House
When you see something you would like to own, you want it very much and you work very hard to get it. You feel you should be free to waste your resources or money if you want, or to be frugal and careful if you want. However, because of the compulsive nature of Mars, you are much more likely to be careless in this regard. Plan carefully for what you really need and then buy it only after much consideration.
Anyone who challenges your strong sense of property arouses your anger. It is not that you are selfish especially, but you want to make your gifts freely, of your own accord.
In the long run you will have to learn to be less possessive of what you own. Otherwise your possessions will bring you more pain than pleasure.