I have suits from Sears, Hechts, Ann Taylor Loft and Petite Sophisticate(which is the petite part of Casual Corner.) Now I am trying to remember. The cheapest suit I bought was a seperates skirt suit from Hechts, around 50 dollars. The suits from Sears were around 80 and the Petite Sophisticate were around 150. Ann Taylor was most expensive but in my opinion, nicest at around 240.
All the suits are petite, I am only 5'2" and all are seperates because I am a different sized top from bottom. Petite Sophisticate/ Casual Corner has gold/silver collections in which you can mix and match pants, skirts and jackets and Ann Taylor carries their dyelot over each year, which you can check on the tag and this allows you to mix peices as styles change without having to keep rebuying a whole new wardrobe.
As far as colors, I would definitely have a navy or black suit for interviews, also I was told that you should wear a skirt to interviews and even court as that is considered formal and a pantsuit on women is more casual. I know, how archaic, but you don't want to make a bad impression because the interviewer didn't think you were serious because his firm considers pansuits on women casual and he took your pantsuit to mean you thought the interview was casual. Thinking about things like this are enough to drive you crazy. Also, depending on the market you want to work in, you may have to say goodbye to color and by color I mean anything not black, navy or gray, including colored stripes. Bottom line, the law is a conservative profession (for the most part) and if you are only going to buy one suit buy a dark suit rather than the tan one with the blue stripes on sale. Sounds awful but Ann Taylor had a really pretty, fit like a glove tan suit with white and blue stripes on sale last summer and I almost bought it, but at that time I was thinking that I was only going to buy one suit. It was pretty but I was warned by a woman, who happended to be in the dressing room, whose daughter was a lawyer that that suit was for casual Friday only.