If you find you need something, I've used A&D ointment - diaper rash creme - instead of Chamois Butt'r, and I had a pro racer girl recommend Eucerin Calming Creme. But, I don't use them on short rides.

One thing - build up slowly. If you build up slowly, you can fix problems with fit and equipment.

Good luck - I'm another one who never thought I would enjoy a sport as much as I do.