old ppls exercise

i tried "curves" with mariyaya today. it was very different any other kind of gym. the format is circuit training for every 30 seconds. every other station is a platform to walk/run in place and the other stations are hydraulic machines that target different areas of the body. i liked the machines but running in one place is a little hokey for me. i never reached above 50% of my recommended heart rate. the music was 80's, 90's, and today's mixes; which wasn't so shabby. i'd buy their cd. i think this type of gym is great for older ppls. i'd take my mom there. i need to go on searching for my perfect gym. i may bite the bullet and pay $$ for the Y or mebbe even to 24hr if the price is right. i just want a nice pool to swim in!