All you need is a quality multivitamin (incase you don't get all your daily requirements from food), and a quality protein shake (i use ON 100% Whey, it works very well for me).

However, if you're looking for an extra "kick", nitric oxide (pre-workout drinks like you mentioned) and creatine will provide that for you.

The rest of the supplements are IMO not needed. Glutamine is said to be good, but I've been using it for 4 or so months and I haven't noticed a difference from when I didn't take it. As long as you get enough carbs and protein in your diet, glutamine is not necessary. I also supplement with Vitamin C, taking in 3 grams a day for overall health and well-being. I can say that it definitely stops me from getting sick.