Since there is no such thing as spot reducing, increase cardio to bur fat, watch your food intake and try to eat as cleanly as possible.
Pilates has some great ab & leg work and also some moves that really hit the hips area.
Floorburn from the Kickbutt series, hits the hip/thigh area and in a very good way.
To preview a clip of it go to
http://www.whfn.com/videos.phpand click on the Floor burn cover towards the bottom. It is geared for more advanced levels, but can easlily be modified for begin/inte levels as well.