thanks for the replies so far, I guess I will answer both of them
almostaugust, I will check out Muay Thai a bit. I expect it to be fairly similar in work out as the Krav Maga is for me currently, but as you stated, you are more of a 'striker'.. That stuff just isn't for me for the most part, but I will give it a shot. No harm in trying it out for a night *grin*
hunnychile, if you can find it in your area, Krav Maga is being taught at my place as Women's Self Defense. It is a workout, but it is very effective in real world situations. I would give it a shot if I were you. There is a wide variety of people in my Krav class ranging from 16 yr old girls, to college students, to guys in their late 40s, to people (women and men) easily in their 60s. It is something you can do regardless of age since the techniques are meant to eat the "tender" spots.
I knew there were quite a few martial arts people on here, but just not many perusing this thread. Oh well, that happens sometimes