[NiteHawk]

Yes, BCAA's are important. I do recommend taking them as a supplement.
If you do just cardio sessions and are trying to preserve muscle, they are key to take before the exercise.

Also during weight training too, the BCAA's are the first aminos to be tapped into so you need extra. I feel your training will greatly benefit from using them. BCAA's are also metabolized in the muscle, not the liver like other aminos. I feel BCAA's can help improve your performance and help with recovery from your training.

The brand I recommend is Scivation XTend.

I dont supplement with extra amino acids though. I too, feel I get plenty with my protein in my diet and supplementation. However, there are a few using extra aminos and seem to have success with it.