Cajun said:
I'd say Tai Chi, Kempo, or Jeet kun do
Peeking in here kind of late, I'm going to have to agree with Cajun. I know a young lady who studies/teaches Kempo. It emphasizes hand striking speed, and she is hella fast. The only place where I think Kempo falls short is grappling, so her school mixes Jiu Jitsu in with the Kempo. Apparently that's quite common.
One afternoon at her dojo I watched one of her green belts take on a 3rd degree black belt in TaeKwonDo. I was very surprised that it wasn't even a contest. The TKD girl would fire a kick, and .00001 seconds later she'd be flat on her back with a knee on her throat. It was mighty impressive.
Muay Thai is also pretty cool. the main difference between it and "normal" kickboxing is that in Muay Thai you also use knees and elbows. Also, when you kick in Muay Thai, I belive you connect with the shin as opposed to the instep of the foot, so you can do a lot of damage.
All in all, I'm afraid you might be limited to the styles that are offered in your area. In my area, 90% of the schools are TKD, and if you want something else, you're in for a drive.
Oh, btw... gurls that fight are
hehehe