check it out, dude.
no martial art is really that applicable to bring to the street. having said that, also consider that ANY style will be enough to kick your ass if the practitioner is advanced enough. but i speak specifically of the people who have reached such advanced levels that it's instinctive to them- that is to say, the ability and the speed. it takes alot of heart and commitment to reach those levels. and alot of people get discouraged when they don't become bruce fucking lee over night.
for instance, i took wushu and traditional kung-fu for quite a while. yes, there are alot of crazy kicks and shit, but when you observe the speed, strength and dexterity of the blackbelts, you see why they would be lethal on the street. not directly because of the style, but because of the physical ability they posess in having mastered it.
for about 4 months i took wing chun, a style that was actually developed by a women ( i believe). this is the style that bruce lee mastered before the creation of jeet kun do. it is probably the most applicable style to bring to the street. it involved severe speed and moving the fight in close. out of 4 months, before i developed elbow tendonitis (from drilling with speed punches), i really only effectively learned 3 or 4 techniques. these wer each very short, quick and devastating. they were really the only few i trained in. with variations in the situation, but always employing the same shit. it was drilled into my fucking head, where it still is today.
for as many people you ask, there will be some opinion promoting another style. some will say that jiu jitsu is the best on the ground, and i believe that it is. jiu jitsu fighters will tell you that q fight always ends up on the ground. others will tell you that if the fight gets to the ground, you're doing something wrong, and so on.
if there are a limited amount of schools in wyour area, i would suggest you check out who has the best instruction, and then begin to train there, no matter the style. you can learn conditioning, stamina and discipline from a good instructor. then you can move on when choices become available.
that help?