newPEguy, I would hold off on buying any equipment at this time and just stick with the newbie routine for about 3 months. After that you can start adding some devices and/or advanced exercises if you would like. And, yes, actually most devices (extenders, pumps, etc) are effective if used properly.
As for the penis not having muscle give this thread a read:
The Penis (smooth) Muscle Theory
And for kegels, this one:
Kegel exercises for men! - Penis Enlargement Gym
Hope this helps, If you have any further questions don't hesitate to ask.