Congrats! I SOOO wish I could learn to love the gym, but after several years of going regularly, I just don't see it happening. The best I can hope is not feeling lazy when I go!
tuchler814, 710 cals in an hour is pretty doable for someone in the 200 lb range, but you have to remember that the calories burned goes down with weight. For me, I can hit the 700 range by walking just below 4 mph on the treadmill if I get the incline up in the 5 or 6 range. Or on cross trainer if I have the resistance up higher. I just have to always make sure that I'm pushing myself and not just leaving the settings the same everyday. I can't do it on any one machine, though, and usually use two different ones in a longer workout.