I would stay well clear of ephedrine for a number of reasons:

1). Its suggested to encourage weight loss via supression of hunger, which for a bodybuilder/weight trainer/athlete would not help when your trying to consume alot of calories.

2.) Most studies state that it does not improve performance

3.) Most importantly, there is strong evidence to suggest it has seriously negative effects on health. The food and drug administration have recieved over 1000 reports staing the negative effects this supplement and supplments containing this subtance have, including: headaches, anxiety, insomnia, tiredness, increased blood pressure, hypertension and strokes. Alot is probably down to miss-use but some cases have been reported even in controlled experiments.

As for glutamine, it has very mixed reviews and personally I would encourage the use of carbohydrate drink ingestion and aequate water intake to optimise hydration status. This is because there is huge amount of evidence to state how hydration can effect performance and it is cheaper to do. Anyhow, thats my view, good luck