Are there any natural herbs or other organic substances that can help with impotence? I don't want to use expensive drugs.. I just want natural alternatives.

You have to remember that naturally occuring compounds can be quite powerful, and not to assume that "natural" means safe. The following items are likely to be effective - but don't overdo it - it's strong stuff.

Take these each day - (along with any other supplements you may use - a good multimineral is a good idea)

1. L-arganine (enhances vascular health)
2. Zinc (between 50 and 200 mg)
3. DHEA (25mg - if under 40, 50mg if over 40)

Take this only about 1 hour before you "need" it.

Standardized Yohimbe

You have to experiment with the dosage, the strength varies quite a bit from manufacturer to manufacturer. Don't take too much, it is a strong thermogenic, you may experience an increased body temperature an persperation.

one more thing...

...don't ask me how I know all this.