Central Nervous System recovery/workout focus:
These are the supplements that I have experience with and would recommend to anyone.
Along with the above, I would say that first you should have the majority of your food intake in check before supplementing, and a quality vitamin/mineral supplement should also be a daily staple in one's diet.
Also a quality fish or flax oil. If you go with flax, don't use the pills. You would need to be taking far too many pills for it to be worth while, so stick with a couple tablespoons of the oil each day. If you go with the fish oil, the pills are fine because it's more concentrated with the good fats.
Essential Fatty Acids are very important as well with too many health benefits for me to list right now, but aiding in muscle growth and fat loss are a couple.
Getting enough quality protein can be difficult and using a quality protein powder is very convenient, but beware of cheap imitation products. Biotest is known for its great quality and very low price on this site because it's direct from the manufacturer.
Post-workout nutrition should have a high Glucose-Index carb and a very fast absorbing protein in a 2:1 ratio and that's what Surge has, along with some even faster absorbing amino acids. If one were to try and make this on their own, not only would it be extremely inconvenient, but it would probably taste terrible because of the type of protein they use, but they somehow found a way to make it taste great.
No, I don't work for Biotest, and I'm not getting paid for this post, LOL.
I really believe in their supplements and I'm hooked on them; not to mention that this site survives partly off of their supplement sales, and they give TONS of great info that you can't easily find anywhere else, all for FREE.
Sorry about going off on a tangent a little, but I realy can't stress how great this site is, and their supplements.