Thanks pman for the nice review. I have looked at the same studies, and agree with GH in regards to not increasing strength, cardiovascular endurance, or overall change in body composition. What it does seem to show in case reports (no great studies that I have been able to find) is improved recovery, and slight increase in mobilizing fat for energy, through the same receptor pathway you mentioned. Above these doses, you are more likely to get the unwanted side effects.
The testosterone part of the equation is what will increase strength and muscle size, not GH.
This is a very controversial topic, and is not widely advertised in our area because of the overall conservative social sentiment. However, I know it is much more advertised and available in more liberal areas (this is where the conventions are usually held for obvious reasons).
MrBlonde, what was your program, for how long, and what results did you see.