IMO, I've read conflicting views on whether hitting weights
first then cardio or vice versa causes one to gain mass or get
lean.
2 schools of thought:
1. Goin cardio first, then doing weights will aid in more muscle
growth; goin weights first, then cardio later will cause one to get
leaner
2. Hitting weights first then cardio will imrpove muscle growth;
vice versa will get one lean
Dunno which to believe since i've done both and i'm very much still
the same...... 
But I believe whichever method of workout chosen, one cannot
neglect the food, since we are what we eat. So if the goal is to
get big, then pile on the proteins and calories. If its to slim
down, then start countin the calories
Prob thats where is dont really bother.....