First - Thanks to everyone for responding. This site can be overwhelming and many many folks here with great results and living the lifestyle.
Here is my situation. I'm 37, use to have decent lungs, but very overweight at the moment. Currently about 248lbs (at 6' tall), work behind a desk and sit down 12-14hrs/day lately.
My goal is < 20% bodyfat, probably somewhere in the 195lb range, but I do not want to drop any muscle getting there. If anything, I want to increase muscle mass after I get my weight down and in better shape. I certainly want to increase my arm/chest size.
The challenge - I get to my max heart rate very quickly while working out. I was an athlete growing up, but been out of shape for 10+ years and SICK of it. My mind wants to get after it, but my body just isn't ready for the pace I wanna go. If I lift moderately, I blow past my max heart rate. If I run on the treadmill more than 15 mins, I blow past my max heart rate.
For the time being, should I focus on one vs the other? Cardio only or lifting or both?
Curious what others would suggest. I cannot get in/out of the gym, in an hour, and get through an average workout program without getting sick in the middle or taking 2 hours.