I did teakwondo for about 4 years a couple of years ago and I love it. Make sure you train WTF and not ITF. ITF is boring, more karate like no-tuching thingy. WTF is what you see on TV and in the olympics with guys in vests kicking the crap outta each other. Cool beans.
Although Muai thai is the ultimate exercising sport and over all very good it might not be worth the 30 minute drive if you got a taekwondo club so close by.. just my
