I haven't decided what routine to go with at the moment. at my gym there is this fit fix program which is a lineup of 9 machines that work different areas. so what ive been doing until I know what im doing is hit the treadmill at a pretty good pace for 15 mins then do 3 sets of 8- 12 (by the end of the last set im pretty much destroyed and have a difficult time getting 8) on each of the 9 machines. then cool down on the elliptical for a couple mins.